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Finding the Third Proportional to 422,885 and 880,760

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Solution

The third proportional to 422,885 and 880,760 is: 1,834,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,885 : 880,760 = 880,760 : x
  2. Step 2: Convert to fraction form
    422,885/880,760 = 880,760/x
  3. Step 3: Cross multiply
    422,885x = 880,760 × 880,760
  4. Step 4: Simplify right side
    422,885x = 775,738,177,600
  5. Step 5: Solve for x
    x = 775,738,177,600/422,885
  6. Step 6: Final answer
    x = 1,834,395.11

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.