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Finding the Third Proportional to 343,292 and 717,972

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Solution

The third proportional to 343,292 and 717,972 is: 1,501,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,292 : 717,972 = 717,972 : x
  2. Step 2: Convert to fraction form
    343,292/717,972 = 717,972/x
  3. Step 3: Cross multiply
    343,292x = 717,972 × 717,972
  4. Step 4: Simplify right side
    343,292x = 515,483,792,784
  5. Step 5: Solve for x
    x = 515,483,792,784/343,292
  6. Step 6: Final answer
    x = 1,501,589.88

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.