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Finding the Fourth Proportional to 376,498.92, 519,306.12 and 319,517.76

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Solution

The fourth proportional to 376,498.92, 519,306.12 and 319,517.76 is: 440,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,498.92 : 519,306.12 = 319,517.76 : x
  2. Step 2: Convert to fraction form
    376,498.92/519,306.12 = 319,517.76/x
  3. Step 3: Cross multiply
    376,498.92x = 519,306.12 × 319,517.76
  4. Step 4: Simplify right side
    376,498.92x = 165,927,528,216.69
  5. Step 5: Solve for x
    x = 165,927,528,216.69/376,498.92
  6. Step 6: Final answer
    x = 440,711.83

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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.