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Finding the Fourth Proportional to 562.24, 843.36 and 489.92

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Solution

The fourth proportional to 562.24, 843.36 and 489.92 is: 734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.24 : 843.36 = 489.92 : x
  2. Step 2: Convert to fraction form
    562.24/843.36 = 489.92/x
  3. Step 3: Cross multiply
    562.24x = 843.36 × 489.92
  4. Step 4: Simplify right side
    562.24x = 413,178.93
  5. Step 5: Solve for x
    x = 413,178.93/562.24
  6. Step 6: Final answer
    x = 734.88

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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.