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Finding the Third Proportional to 625.78 and 973.41

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Solution

The third proportional to 625.78 and 973.41 is: 1,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.78 : 973.41 = 973.41 : x
  2. Step 2: Convert to fraction form
    625.78/973.41 = 973.41/x
  3. Step 3: Cross multiply
    625.78x = 973.41 × 973.41
  4. Step 4: Simplify right side
    625.78x = 947,519.73
  5. Step 5: Solve for x
    x = 947,519.73/625.78
  6. Step 6: Final answer
    x = 1,514.14

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.