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Finding the Fourth Proportional to 694.35, 958.17 and 379.59

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Solution

The fourth proportional to 694.35, 958.17 and 379.59 is: 523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.35 : 958.17 = 379.59 : x
  2. Step 2: Convert to fraction form
    694.35/958.17 = 379.59/x
  3. Step 3: Cross multiply
    694.35x = 958.17 × 379.59
  4. Step 4: Simplify right side
    694.35x = 363,711.75
  5. Step 5: Solve for x
    x = 363,711.75/694.35
  6. Step 6: Final answer
    x = 523.82

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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.