Finding the Third Proportional to 645,859.97 and 1,390,441.19
Calculator
Solution
The third proportional to 645,859.97 and 1,390,441.19 is: 2,993,414.66
Step by Step Solution
- Step 1: Write the proportion equation
645,859.97 : 1,390,441.19 = 1,390,441.19 : x - Step 2: Convert to fraction form
645,859.97/1,390,441.19 = 1,390,441.19/x - Step 3: Cross multiply
645,859.97x = 1,390,441.19 × 1,390,441.19 - Step 4: Simplify right side
645,859.97x = 1,933,326,695,896.41 - Step 5: Solve for x
x = 1,933,326,695,896.41/645,859.97 - Step 6: Final answer
x = 2,993,414.66
Related Problems
Find third proportional to 322,929.98 and 695,220.59
Half scale
Find third proportional to 1,291,719.94 and 2,780,882.38
Double scale
Find third proportional to 645,862 and 1,390,445
Similar ratio
Find third proportional to 968,789.95 and 2,085,661.78
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.