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Finding the Third Proportional to 814.43 and 1,785.48

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Solution

The third proportional to 814.43 and 1,785.48 is: 3,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.43 : 1,785.48 = 1,785.48 : x
  2. Step 2: Convert to fraction form
    814.43/1,785.48 = 1,785.48/x
  3. Step 3: Cross multiply
    814.43x = 1,785.48 × 1,785.48
  4. Step 4: Simplify right side
    814.43x = 3,187,940.50
  5. Step 5: Solve for x
    x = 3,187,940.50/814.43
  6. Step 6: Final answer
    x = 3,914.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.