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Finding the Third Proportional to 466.59 and 686.39

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Solution

The third proportional to 466.59 and 686.39 is: 1,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.59 : 686.39 = 686.39 : x
  2. Step 2: Convert to fraction form
    466.59/686.39 = 686.39/x
  3. Step 3: Cross multiply
    466.59x = 686.39 × 686.39
  4. Step 4: Simplify right side
    466.59x = 471,132.09
  5. Step 5: Solve for x
    x = 471,132.09/466.59
  6. Step 6: Final answer
    x = 1,009.73

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.