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Finding the Third Proportional to 427,693 and 662,167

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Solution

The third proportional to 427,693 and 662,167 is: 1,025,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,693 : 662,167 = 662,167 : x
  2. Step 2: Convert to fraction form
    427,693/662,167 = 662,167/x
  3. Step 3: Cross multiply
    427,693x = 662,167 × 662,167
  4. Step 4: Simplify right side
    427,693x = 438,465,135,889
  5. Step 5: Solve for x
    x = 438,465,135,889/427,693
  6. Step 6: Final answer
    x = 1,025,186.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.