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Finding the Third Proportional to 412,812 and 843,112

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Solution

The third proportional to 412,812 and 843,112 is: 1,721,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,812 : 843,112 = 843,112 : x
  2. Step 2: Convert to fraction form
    412,812/843,112 = 843,112/x
  3. Step 3: Cross multiply
    412,812x = 843,112 × 843,112
  4. Step 4: Simplify right side
    412,812x = 710,837,844,544
  5. Step 5: Solve for x
    x = 710,837,844,544/412,812
  6. Step 6: Final answer
    x = 1,721,940.85

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.