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Finding the Third Proportional to 726.38 and 1,055.63

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Solution

The third proportional to 726.38 and 1,055.63 is: 1,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.38 : 1,055.63 = 1,055.63 : x
  2. Step 2: Convert to fraction form
    726.38/1,055.63 = 1,055.63/x
  3. Step 3: Cross multiply
    726.38x = 1,055.63 × 1,055.63
  4. Step 4: Simplify right side
    726.38x = 1,114,344.14
  5. Step 5: Solve for x
    x = 1,114,344.14/726.38
  6. Step 6: Final answer
    x = 1,534.12

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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.