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Finding the Third Proportional to 738.43 and 1,073.21

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Solution

The third proportional to 738.43 and 1,073.21 is: 1,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.43 : 1,073.21 = 1,073.21 : x
  2. Step 2: Convert to fraction form
    738.43/1,073.21 = 1,073.21/x
  3. Step 3: Cross multiply
    738.43x = 1,073.21 × 1,073.21
  4. Step 4: Simplify right side
    738.43x = 1,151,780.67
  5. Step 5: Solve for x
    x = 1,151,780.67/738.43
  6. Step 6: Final answer
    x = 1,559.76

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.