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Finding the Third Proportional to 517.75 and 1,009.25

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Solution

The third proportional to 517.75 and 1,009.25 is: 1,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.75 : 1,009.25 = 1,009.25 : x
  2. Step 2: Convert to fraction form
    517.75/1,009.25 = 1,009.25/x
  3. Step 3: Cross multiply
    517.75x = 1,009.25 × 1,009.25
  4. Step 4: Simplify right side
    517.75x = 1,018,585.56
  5. Step 5: Solve for x
    x = 1,018,585.56/517.75
  6. Step 6: Final answer
    x = 1,967.33

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.