Home / 908,539.31-1,253,839.99-500,640.91

Finding the Fourth Proportional to 908,539.31, 1,253,839.99 and 500,640.91

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Solution

The fourth proportional to 908,539.31, 1,253,839.99 and 500,640.91 is: 690,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,539.31 : 1,253,839.99 = 500,640.91 : x
  2. Step 2: Convert to fraction form
    908,539.31/1,253,839.99 = 500,640.91/x
  3. Step 3: Cross multiply
    908,539.31x = 1,253,839.99 × 500,640.91
  4. Step 4: Simplify right side
    908,539.31x = 627,723,593,587.99
  5. Step 5: Solve for x
    x = 627,723,593,587.99/908,539.31
  6. Step 6: Final answer
    x = 690,915.17

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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.