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Finding the Third Proportional to 630.13 and 945.75

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Solution

The third proportional to 630.13 and 945.75 is: 1,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.13 : 945.75 = 945.75 : x
  2. Step 2: Convert to fraction form
    630.13/945.75 = 945.75/x
  3. Step 3: Cross multiply
    630.13x = 945.75 × 945.75
  4. Step 4: Simplify right side
    630.13x = 894,443.06
  5. Step 5: Solve for x
    x = 894,443.06/630.13
  6. Step 6: Final answer
    x = 1,419.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.