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Finding the Third Proportional to 422,182 and 861,584

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Solution

The third proportional to 422,182 and 861,584 is: 1,758,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,182 : 861,584 = 861,584 : x
  2. Step 2: Convert to fraction form
    422,182/861,584 = 861,584/x
  3. Step 3: Cross multiply
    422,182x = 861,584 × 861,584
  4. Step 4: Simplify right side
    422,182x = 742,326,989,056
  5. Step 5: Solve for x
    x = 742,326,989,056/422,182
  6. Step 6: Final answer
    x = 1,758,310.37

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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.