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Finding the Third Proportional to 694.88 and 839.44

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Solution

The third proportional to 694.88 and 839.44 is: 1,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.88 : 839.44 = 839.44 : x
  2. Step 2: Convert to fraction form
    694.88/839.44 = 839.44/x
  3. Step 3: Cross multiply
    694.88x = 839.44 × 839.44
  4. Step 4: Simplify right side
    694.88x = 704,655.32
  5. Step 5: Solve for x
    x = 704,655.32/694.88
  6. Step 6: Final answer
    x = 1,014.07

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.