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Finding the Third Proportional to 812.63 and 1,650.38

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Solution

The third proportional to 812.63 and 1,650.38 is: 3,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    812.63 : 1,650.38 = 1,650.38 : x
  2. Step 2: Convert to fraction form
    812.63/1,650.38 = 1,650.38/x
  3. Step 3: Cross multiply
    812.63x = 1,650.38 × 1,650.38
  4. Step 4: Simplify right side
    812.63x = 2,723,737.64
  5. Step 5: Solve for x
    x = 2,723,737.64/812.63
  6. Step 6: Final answer
    x = 3,351.78

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.