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Finding the Fourth Proportional to 637.52, 955.57 and 417.44

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Solution

The fourth proportional to 637.52, 955.57 and 417.44 is: 625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.52 : 955.57 = 417.44 : x
  2. Step 2: Convert to fraction form
    637.52/955.57 = 417.44/x
  3. Step 3: Cross multiply
    637.52x = 955.57 × 417.44
  4. Step 4: Simplify right side
    637.52x = 398,891.05
  5. Step 5: Solve for x
    x = 398,891.05/637.52
  6. Step 6: Final answer
    x = 625.70

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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.