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Finding the Third Proportional to 861,667 and 1,207,465

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Solution

The third proportional to 861,667 and 1,207,465 is: 1,692,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,667 : 1,207,465 = 1,207,465 : x
  2. Step 2: Convert to fraction form
    861,667/1,207,465 = 1,207,465/x
  3. Step 3: Cross multiply
    861,667x = 1,207,465 × 1,207,465
  4. Step 4: Simplify right side
    861,667x = 1,457,971,726,225
  5. Step 5: Solve for x
    x = 1,457,971,726,225/861,667
  6. Step 6: Final answer
    x = 1,692,036.17

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.