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Finding the Fourth Proportional to 694.62, 958.54 and 414.79

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Solution

The fourth proportional to 694.62, 958.54 and 414.79 is: 572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.62 : 958.54 = 414.79 : x
  2. Step 2: Convert to fraction form
    694.62/958.54 = 414.79/x
  3. Step 3: Cross multiply
    694.62x = 958.54 × 414.79
  4. Step 4: Simplify right side
    694.62x = 397,592.81
  5. Step 5: Solve for x
    x = 397,592.81/694.62
  6. Step 6: Final answer
    x = 572.39

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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.