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Finding the Fourth Proportional to 502,390.61, 693,306.90 and 272,952.44

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Solution

The fourth proportional to 502,390.61, 693,306.90 and 272,952.44 is: 376,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,390.61 : 693,306.90 = 272,952.44 : x
  2. Step 2: Convert to fraction form
    502,390.61/693,306.90 = 272,952.44/x
  3. Step 3: Cross multiply
    502,390.61x = 693,306.90 × 272,952.44
  4. Step 4: Simplify right side
    502,390.61x = 189,239,806,557.30
  5. Step 5: Solve for x
    x = 189,239,806,557.30/502,390.61
  6. Step 6: Final answer
    x = 376,678.63

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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.