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Finding the Third Proportional to 513,676 and 681,774

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Solution

The third proportional to 513,676 and 681,774 is: 904,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,676 : 681,774 = 681,774 : x
  2. Step 2: Convert to fraction form
    513,676/681,774 = 681,774/x
  3. Step 3: Cross multiply
    513,676x = 681,774 × 681,774
  4. Step 4: Simplify right side
    513,676x = 464,815,787,076
  5. Step 5: Solve for x
    x = 464,815,787,076/513,676
  6. Step 6: Final answer
    x = 904,881.26

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.