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Finding the Third Proportional to 726,361 and 857,582

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Solution

The third proportional to 726,361 and 857,582 is: 1,012,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,361 : 857,582 = 857,582 : x
  2. Step 2: Convert to fraction form
    726,361/857,582 = 857,582/x
  3. Step 3: Cross multiply
    726,361x = 857,582 × 857,582
  4. Step 4: Simplify right side
    726,361x = 735,446,886,724
  5. Step 5: Solve for x
    x = 735,446,886,724/726,361
  6. Step 6: Final answer
    x = 1,012,508.78

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.