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Finding the Third Proportional to 412,348 and 878,696

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Solution

The third proportional to 412,348 and 878,696 is: 1,872,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,348 : 878,696 = 878,696 : x
  2. Step 2: Convert to fraction form
    412,348/878,696 = 878,696/x
  3. Step 3: Cross multiply
    412,348x = 878,696 × 878,696
  4. Step 4: Simplify right side
    412,348x = 772,106,660,416
  5. Step 5: Solve for x
    x = 772,106,660,416/412,348
  6. Step 6: Final answer
    x = 1,872,463.70

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.