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Finding the Third Proportional to 678,660 and 1,049,874

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Solution

The third proportional to 678,660 and 1,049,874 is: 1,624,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,660 : 1,049,874 = 1,049,874 : x
  2. Step 2: Convert to fraction form
    678,660/1,049,874 = 1,049,874/x
  3. Step 3: Cross multiply
    678,660x = 1,049,874 × 1,049,874
  4. Step 4: Simplify right side
    678,660x = 1,102,235,415,876
  5. Step 5: Solve for x
    x = 1,102,235,415,876/678,660
  6. Step 6: Final answer
    x = 1,624,134.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.