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Finding the Third Proportional to 755.44 and 1,007.72

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Solution

The third proportional to 755.44 and 1,007.72 is: 1,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.44 : 1,007.72 = 1,007.72 : x
  2. Step 2: Convert to fraction form
    755.44/1,007.72 = 1,007.72/x
  3. Step 3: Cross multiply
    755.44x = 1,007.72 × 1,007.72
  4. Step 4: Simplify right side
    755.44x = 1,015,497.08
  5. Step 5: Solve for x
    x = 1,015,497.08/755.44
  6. Step 6: Final answer
    x = 1,344.25

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.