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Finding the Fourth Proportional to 624.38, 936.43 and 441.25

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Solution

The fourth proportional to 624.38, 936.43 and 441.25 is: 661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.38 : 936.43 = 441.25 : x
  2. Step 2: Convert to fraction form
    624.38/936.43 = 441.25/x
  3. Step 3: Cross multiply
    624.38x = 936.43 × 441.25
  4. Step 4: Simplify right side
    624.38x = 413,196.29
  5. Step 5: Solve for x
    x = 413,196.29/624.38
  6. Step 6: Final answer
    x = 661.78

Related Problems

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Double scale
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Similar ratio
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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.