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Finding the Fourth Proportional to 502,753.28, 693,781.80 and 276,397.04

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Solution

The fourth proportional to 502,753.28, 693,781.80 and 276,397.04 is: 381,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,753.28 : 693,781.80 = 276,397.04 : x
  2. Step 2: Convert to fraction form
    502,753.28/693,781.80 = 276,397.04/x
  3. Step 3: Cross multiply
    502,753.28x = 693,781.80 × 276,397.04
  4. Step 4: Simplify right side
    502,753.28x = 191,759,235,925.87
  5. Step 5: Solve for x
    x = 191,759,235,925.87/502,753.28
  6. Step 6: Final answer
    x = 381,418.17

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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.