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Finding the Fourth Proportional to 659.37, 908.56 and 540.97

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Solution

The fourth proportional to 659.37, 908.56 and 540.97 is: 745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.37 : 908.56 = 540.97 : x
  2. Step 2: Convert to fraction form
    659.37/908.56 = 540.97/x
  3. Step 3: Cross multiply
    659.37x = 908.56 × 540.97
  4. Step 4: Simplify right side
    659.37x = 491,503.70
  5. Step 5: Solve for x
    x = 491,503.70/659.37
  6. Step 6: Final answer
    x = 745.41

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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.