There are plenty of ways, the top three are: killing green dragons, Skilling, and Merchanting(merching).
Woodcutting
You will usually make quite a bit less than that.
If you are a level 100+ it is really very simple. Go do barrows.
u dont get dollars in runescape u get gold pieces it would take 2000 swordfish to get 1,000,000gp(gold pieces) because each swordfish sells for 500gp if cooked and 2000X500=1mil
Answer Walk around, till you find 1 gold, lying on the ground. Pick it up. Repeat 99999 times.
Easier than what? You can get some resources and sell them. For example, you can do some mining, woodcutting or fishing.
that's a bad question if u want money earn it from quests or train in a good skill but to be honest you will never ever have 1 mill ever i have 800k but i don't play anymore
mine rune essence for 2 hours and go to the bank just above the head wizzard and then go to grand exchange and withdraw all the essence in ticket form and sell
about 1mil per year.........
Sometimes the party room is dropping 1m if a player is depositing 1m.And the bank is going to teleport you into the party room if you are far from falador and it will be nice to get over 1mil the best place where i got 100mil is at the party room it is pretty nice
Using a calculator you will need to cut around 2093 for 1M.Grand Exchange Price at the time ( 478 ) Divided by the Amount you seek ( 1 Million ) bring the Answer is approx. 2092.5 rounded to the nearest whole number 2093.
I would say probably about 200-202 but in karajama is a bank i think so you could spend over 1mil coins or something.