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Finding the Third Proportional to 625.88 and 713.63

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Solution

The third proportional to 625.88 and 713.63 is: 813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.88 : 713.63 = 713.63 : x
  2. Step 2: Convert to fraction form
    625.88/713.63 = 713.63/x
  3. Step 3: Cross multiply
    625.88x = 713.63 × 713.63
  4. Step 4: Simplify right side
    625.88x = 509,260.64
  5. Step 5: Solve for x
    x = 509,260.64/625.88
  6. Step 6: Final answer
    x = 813.68

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.