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Finding the Fourth Proportional to 625.85, 939.24 and 463.97

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Solution

The fourth proportional to 625.85, 939.24 and 463.97 is: 696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.85 : 939.24 = 463.97 : x
  2. Step 2: Convert to fraction form
    625.85/939.24 = 463.97/x
  3. Step 3: Cross multiply
    625.85x = 939.24 × 463.97
  4. Step 4: Simplify right side
    625.85x = 435,779.18
  5. Step 5: Solve for x
    x = 435,779.18/625.85
  6. Step 6: Final answer
    x = 696.30

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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.