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Finding the Third Proportional to 322,101 and 685,782

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Solution

The third proportional to 322,101 and 685,782 is: 1,460,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,101 : 685,782 = 685,782 : x
  2. Step 2: Convert to fraction form
    322,101/685,782 = 685,782/x
  3. Step 3: Cross multiply
    322,101x = 685,782 × 685,782
  4. Step 4: Simplify right side
    322,101x = 470,296,951,524
  5. Step 5: Solve for x
    x = 470,296,951,524/322,101
  6. Step 6: Final answer
    x = 1,460,091.56

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.