Home / 477,016-645,539

Finding the Third Proportional to 477,016 and 645,539

Calculator

Solution

The third proportional to 477,016 and 645,539 is: 873,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,016 : 645,539 = 645,539 : x
  2. Step 2: Convert to fraction form
    477,016/645,539 = 645,539/x
  3. Step 3: Cross multiply
    477,016x = 645,539 × 645,539
  4. Step 4: Simplify right side
    477,016x = 416,720,600,521
  5. Step 5: Solve for x
    x = 416,720,600,521/477,016
  6. Step 6: Final answer
    x = 873,598.79

Related Problems

Find third proportional to 238,508 and 322,769.50
Half scale
Find third proportional to 954,032 and 1,291,078
Double scale
Find third proportional to 477,018 and 645,542
Similar ratio
Find third proportional to 715,524 and 968,308.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.