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Finding the Fourth Proportional to 527,463.85, 727,899.21 and 285,752.51

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Solution

The fourth proportional to 527,463.85, 727,899.21 and 285,752.51 is: 394,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,463.85 : 727,899.21 = 285,752.51 : x
  2. Step 2: Convert to fraction form
    527,463.85/727,899.21 = 285,752.51/x
  3. Step 3: Cross multiply
    527,463.85x = 727,899.21 × 285,752.51
  4. Step 4: Simplify right side
    527,463.85x = 207,999,025,374.64
  5. Step 5: Solve for x
    x = 207,999,025,374.64/527,463.85
  6. Step 6: Final answer
    x = 394,337.97

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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.