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Finding the Third Proportional to 725.63 and 1,103.63

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Solution

The third proportional to 725.63 and 1,103.63 is: 1,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.63 : 1,103.63 = 1,103.63 : x
  2. Step 2: Convert to fraction form
    725.63/1,103.63 = 1,103.63/x
  3. Step 3: Cross multiply
    725.63x = 1,103.63 × 1,103.63
  4. Step 4: Simplify right side
    725.63x = 1,217,988.14
  5. Step 5: Solve for x
    x = 1,217,988.14/725.63
  6. Step 6: Final answer
    x = 1,678.54

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.