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Finding the Fourth Proportional to 676.90, 932.62 and 508.14

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Solution

The fourth proportional to 676.90, 932.62 and 508.14 is: 700.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.90 : 932.62 = 508.14 : x
  2. Step 2: Convert to fraction form
    676.90/932.62 = 508.14/x
  3. Step 3: Cross multiply
    676.90x = 932.62 × 508.14
  4. Step 4: Simplify right side
    676.90x = 473,901.53
  5. Step 5: Solve for x
    x = 473,901.53/676.90
  6. Step 6: Final answer
    x = 700.11

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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.