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Finding the Third Proportional to 628.03 and 843.05

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Solution

The third proportional to 628.03 and 843.05 is: 1,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.03 : 843.05 = 843.05 : x
  2. Step 2: Convert to fraction form
    628.03/843.05 = 843.05/x
  3. Step 3: Cross multiply
    628.03x = 843.05 × 843.05
  4. Step 4: Simplify right side
    628.03x = 710,728.03
  5. Step 5: Solve for x
    x = 710,728.03/628.03
  6. Step 6: Final answer
    x = 1,131.68

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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.