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Finding the Third Proportional to 540.75 and 839.06

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Solution

The third proportional to 540.75 and 839.06 is: 1,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.75 : 839.06 = 839.06 : x
  2. Step 2: Convert to fraction form
    540.75/839.06 = 839.06/x
  3. Step 3: Cross multiply
    540.75x = 839.06 × 839.06
  4. Step 4: Simplify right side
    540.75x = 704,025.88
  5. Step 5: Solve for x
    x = 704,025.88/540.75
  6. Step 6: Final answer
    x = 1,301.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.