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Finding the Third Proportional to 299,676 and 682,494

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Solution

The third proportional to 299,676 and 682,494 is: 1,554,338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,676 : 682,494 = 682,494 : x
  2. Step 2: Convert to fraction form
    299,676/682,494 = 682,494/x
  3. Step 3: Cross multiply
    299,676x = 682,494 × 682,494
  4. Step 4: Simplify right side
    299,676x = 465,798,060,036
  5. Step 5: Solve for x
    x = 465,798,060,036/299,676
  6. Step 6: Final answer
    x = 1,554,338.89

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.