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Finding the Fourth Proportional to 676.44, 932.48 and 414

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Solution

The fourth proportional to 676.44, 932.48 and 414 is: 570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.44 : 932.48 = 414 : x
  2. Step 2: Convert to fraction form
    676.44/932.48 = 414/x
  3. Step 3: Cross multiply
    676.44x = 932.48 × 414
  4. Step 4: Simplify right side
    676.44x = 386,046.20
  5. Step 5: Solve for x
    x = 386,046.20/676.44
  6. Step 6: Final answer
    x = 570.70

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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.