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Finding the Fourth Proportional to 679.25, 937.61 and 472.37

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Solution

The fourth proportional to 679.25, 937.61 and 472.37 is: 652.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679.25 : 937.61 = 472.37 : x
  2. Step 2: Convert to fraction form
    679.25/937.61 = 472.37/x
  3. Step 3: Cross multiply
    679.25x = 937.61 × 472.37
  4. Step 4: Simplify right side
    679.25x = 442,896.47
  5. Step 5: Solve for x
    x = 442,896.47/679.25
  6. Step 6: Final answer
    x = 652.04

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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.