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Finding the Fourth Proportional to 637.40, 879.25 and 460.17

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Solution

The fourth proportional to 637.40, 879.25 and 460.17 is: 634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.40 : 879.25 = 460.17 : x
  2. Step 2: Convert to fraction form
    637.40/879.25 = 460.17/x
  3. Step 3: Cross multiply
    637.40x = 879.25 × 460.17
  4. Step 4: Simplify right side
    637.40x = 404,597.78
  5. Step 5: Solve for x
    x = 404,597.78/637.40
  6. Step 6: Final answer
    x = 634.76

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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.