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Finding the Fourth Proportional to 658.82, 909.95 and 437.38

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Solution

The fourth proportional to 658.82, 909.95 and 437.38 is: 604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.82 : 909.95 = 437.38 : x
  2. Step 2: Convert to fraction form
    658.82/909.95 = 437.38/x
  3. Step 3: Cross multiply
    658.82x = 909.95 × 437.38
  4. Step 4: Simplify right side
    658.82x = 397,989.47
  5. Step 5: Solve for x
    x = 397,989.47/658.82
  6. Step 6: Final answer
    x = 604.09

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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.