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Finding the Third Proportional to 713.25 and 798.75

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Solution

The third proportional to 713.25 and 798.75 is: 894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.25 : 798.75 = 798.75 : x
  2. Step 2: Convert to fraction form
    713.25/798.75 = 798.75/x
  3. Step 3: Cross multiply
    713.25x = 798.75 × 798.75
  4. Step 4: Simplify right side
    713.25x = 638,001.56
  5. Step 5: Solve for x
    x = 638,001.56/713.25
  6. Step 6: Final answer
    x = 894.50

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.