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Finding the Third Proportional to 928.69 and 1,324.97

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Solution

The third proportional to 928.69 and 1,324.97 is: 1,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    928.69 : 1,324.97 = 1,324.97 : x
  2. Step 2: Convert to fraction form
    928.69/1,324.97 = 1,324.97/x
  3. Step 3: Cross multiply
    928.69x = 1,324.97 × 1,324.97
  4. Step 4: Simplify right side
    928.69x = 1,755,542.19
  5. Step 5: Solve for x
    x = 1,755,542.19/928.69
  6. Step 6: Final answer
    x = 1,890.35

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.