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Finding the Third Proportional to 718,389 and 958,599

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Solution

The third proportional to 718,389 and 958,599 is: 1,279,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,389 : 958,599 = 958,599 : x
  2. Step 2: Convert to fraction form
    718,389/958,599 = 958,599/x
  3. Step 3: Cross multiply
    718,389x = 958,599 × 958,599
  4. Step 4: Simplify right side
    718,389x = 918,912,042,801
  5. Step 5: Solve for x
    x = 918,912,042,801/718,389
  6. Step 6: Final answer
    x = 1,279,128.78

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.