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Finding the Third Proportional to 412,787 and 843,067

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Solution

The third proportional to 412,787 and 843,067 is: 1,721,861.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,787 : 843,067 = 843,067 : x
  2. Step 2: Convert to fraction form
    412,787/843,067 = 843,067/x
  3. Step 3: Cross multiply
    412,787x = 843,067 × 843,067
  4. Step 4: Simplify right side
    412,787x = 710,761,966,489
  5. Step 5: Solve for x
    x = 710,761,966,489/412,787
  6. Step 6: Final answer
    x = 1,721,861.31

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.