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Finding the Fourth Proportional to 527,332, 791,276.90 and 287,618.96

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Solution

The fourth proportional to 527,332, 791,276.90 and 287,618.96 is: 431,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,332 : 791,276.90 = 287,618.96 : x
  2. Step 2: Convert to fraction form
    527,332/791,276.90 = 287,618.96/x
  3. Step 3: Cross multiply
    527,332x = 791,276.90 × 287,618.96
  4. Step 4: Simplify right side
    527,332x = 227,586,239,050.02
  5. Step 5: Solve for x
    x = 227,586,239,050.02/527,332
  6. Step 6: Final answer
    x = 431,580.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.