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Finding the Third Proportional to 624.50 and 936.25

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Solution

The third proportional to 624.50 and 936.25 is: 1,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.50 : 936.25 = 936.25 : x
  2. Step 2: Convert to fraction form
    624.50/936.25 = 936.25/x
  3. Step 3: Cross multiply
    624.50x = 936.25 × 936.25
  4. Step 4: Simplify right side
    624.50x = 876,564.06
  5. Step 5: Solve for x
    x = 876,564.06/624.50
  6. Step 6: Final answer
    x = 1,403.63

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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.