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Finding the Third Proportional to 412,131 and 878,700

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Solution

The third proportional to 412,131 and 878,700 is: 1,873,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,131 : 878,700 = 878,700 : x
  2. Step 2: Convert to fraction form
    412,131/878,700 = 878,700/x
  3. Step 3: Cross multiply
    412,131x = 878,700 × 878,700
  4. Step 4: Simplify right side
    412,131x = 772,113,690,000
  5. Step 5: Solve for x
    x = 772,113,690,000/412,131
  6. Step 6: Final answer
    x = 1,873,466.66

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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.