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Finding the Fourth Proportional to 624.83, 937.29 and 487.61

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Solution

The fourth proportional to 624.83, 937.29 and 487.61 is: 731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.83 : 937.29 = 487.61 : x
  2. Step 2: Convert to fraction form
    624.83/937.29 = 487.61/x
  3. Step 3: Cross multiply
    624.83x = 937.29 × 487.61
  4. Step 4: Simplify right side
    624.83x = 457,031.98
  5. Step 5: Solve for x
    x = 457,031.98/624.83
  6. Step 6: Final answer
    x = 731.45

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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.