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Finding the Third Proportional to 625.88 and 835.69

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Solution

The third proportional to 625.88 and 835.69 is: 1,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.88 : 835.69 = 835.69 : x
  2. Step 2: Convert to fraction form
    625.88/835.69 = 835.69/x
  3. Step 3: Cross multiply
    625.88x = 835.69 × 835.69
  4. Step 4: Simplify right side
    625.88x = 698,373.60
  5. Step 5: Solve for x
    x = 698,373.60/625.88
  6. Step 6: Final answer
    x = 1,115.84

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.