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Finding the Third Proportional to 723.30 and 1,187.47

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Solution

The third proportional to 723.30 and 1,187.47 is: 1,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.30 : 1,187.47 = 1,187.47 : x
  2. Step 2: Convert to fraction form
    723.30/1,187.47 = 1,187.47/x
  3. Step 3: Cross multiply
    723.30x = 1,187.47 × 1,187.47
  4. Step 4: Simplify right side
    723.30x = 1,410,091.31
  5. Step 5: Solve for x
    x = 1,410,091.31/723.30
  6. Step 6: Final answer
    x = 1,949.51

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.