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Finding the Fourth Proportional to 624.16, 861.54 and 414.52

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Solution

The fourth proportional to 624.16, 861.54 and 414.52 is: 572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.16 : 861.54 = 414.52 : x
  2. Step 2: Convert to fraction form
    624.16/861.54 = 414.52/x
  3. Step 3: Cross multiply
    624.16x = 861.54 × 414.52
  4. Step 4: Simplify right side
    624.16x = 357,125.56
  5. Step 5: Solve for x
    x = 357,125.56/624.16
  6. Step 6: Final answer
    x = 572.17

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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.