3.9E-6 is what percent of 1 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 1 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 1, so we can write it down as 100%=1.
4. We know, that x% equals 3.9E-6 of the output value, so we can write it down as x%=3.9E-6.
5. Now we have two simple equations:
1) 100%=1
2) x%=3.9E-6
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=1/3.9E-6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3.9E-6 is what percent of 1

100%/x%=1/3.9E-6
(100/x)*x=(1/3.9E-6)*x       - we multiply both sides of the equation by x
100=256410.25641026*x       - we divide both sides of the equation by (256410.25641026) to get x
100/256410.25641026=x
0.00039=x
x=0.00039

now we have:
3.9E-6 is 0.00039% of 1