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Finding the Third Proportional to 563,721 and 872,496

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Solution

The third proportional to 563,721 and 872,496 is: 1,350,400.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,721 : 872,496 = 872,496 : x
  2. Step 2: Convert to fraction form
    563,721/872,496 = 872,496/x
  3. Step 3: Cross multiply
    563,721x = 872,496 × 872,496
  4. Step 4: Simplify right side
    563,721x = 761,249,270,016
  5. Step 5: Solve for x
    x = 761,249,270,016/563,721
  6. Step 6: Final answer
    x = 1,350,400.77

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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.