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Finding the Third Proportional to 406,274 and 861,700

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Solution

The third proportional to 406,274 and 861,700 is: 1,827,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,274 : 861,700 = 861,700 : x
  2. Step 2: Convert to fraction form
    406,274/861,700 = 861,700/x
  3. Step 3: Cross multiply
    406,274x = 861,700 × 861,700
  4. Step 4: Simplify right side
    406,274x = 742,526,890,000
  5. Step 5: Solve for x
    x = 742,526,890,000/406,274
  6. Step 6: Final answer
    x = 1,827,650.53

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.