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Finding the Third Proportional to 459,721 and 713,638

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Solution

The third proportional to 459,721 and 713,638 is: 1,107,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,721 : 713,638 = 713,638 : x
  2. Step 2: Convert to fraction form
    459,721/713,638 = 713,638/x
  3. Step 3: Cross multiply
    459,721x = 713,638 × 713,638
  4. Step 4: Simplify right side
    459,721x = 509,279,195,044
  5. Step 5: Solve for x
    x = 509,279,195,044/459,721
  6. Step 6: Final answer
    x = 1,107,800.59

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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.