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Finding the Fourth Proportional to 624.39, 936.92 and 441.42

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Solution

The fourth proportional to 624.39, 936.92 and 441.42 is: 662.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.39 : 936.92 = 441.42 : x
  2. Step 2: Convert to fraction form
    624.39/936.92 = 441.42/x
  3. Step 3: Cross multiply
    624.39x = 936.92 × 441.42
  4. Step 4: Simplify right side
    624.39x = 413,575.23
  5. Step 5: Solve for x
    x = 413,575.23/624.39
  6. Step 6: Final answer
    x = 662.37

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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.