Home / 690,061.38-952,217.90-508,870.86

Finding the Fourth Proportional to 690,061.38, 952,217.90 and 508,870.86

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Solution

The fourth proportional to 690,061.38, 952,217.90 and 508,870.86 is: 702,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,061.38 : 952,217.90 = 508,870.86 : x
  2. Step 2: Convert to fraction form
    690,061.38/952,217.90 = 508,870.86/x
  3. Step 3: Cross multiply
    690,061.38x = 952,217.90 × 508,870.86
  4. Step 4: Simplify right side
    690,061.38x = 484,555,936,919.31
  5. Step 5: Solve for x
    x = 484,555,936,919.31/690,061.38
  6. Step 6: Final answer
    x = 702,192.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.