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Finding the Third Proportional to 263,724 and 419,292

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Solution

The third proportional to 263,724 and 419,292 is: 666,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,724 : 419,292 = 419,292 : x
  2. Step 2: Convert to fraction form
    263,724/419,292 = 419,292/x
  3. Step 3: Cross multiply
    263,724x = 419,292 × 419,292
  4. Step 4: Simplify right side
    263,724x = 175,805,781,264
  5. Step 5: Solve for x
    x = 175,805,781,264/263,724
  6. Step 6: Final answer
    x = 666,627.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.