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Finding the Third Proportional to 354,904 and 726,392

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Solution

The third proportional to 354,904 and 726,392 is: 1,486,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,904 : 726,392 = 726,392 : x
  2. Step 2: Convert to fraction form
    354,904/726,392 = 726,392/x
  3. Step 3: Cross multiply
    354,904x = 726,392 × 726,392
  4. Step 4: Simplify right side
    354,904x = 527,645,337,664
  5. Step 5: Solve for x
    x = 527,645,337,664/354,904
  6. Step 6: Final answer
    x = 1,486,726.94

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.