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Finding the Fourth Proportional to 502,470.38, 693,414.60 and 276,115.88

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Solution

The fourth proportional to 502,470.38, 693,414.60 and 276,115.88 is: 381,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,470.38 : 693,414.60 = 276,115.88 : x
  2. Step 2: Convert to fraction form
    502,470.38/693,414.60 = 276,115.88/x
  3. Step 3: Cross multiply
    502,470.38x = 693,414.60 × 276,115.88
  4. Step 4: Simplify right side
    502,470.38x = 191,462,782,483.85
  5. Step 5: Solve for x
    x = 191,462,782,483.85/502,470.38
  6. Step 6: Final answer
    x = 381,042.92

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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.