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Finding the Third Proportional to 445,479.75 and 648,081

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Solution

The third proportional to 445,479.75 and 648,081 is: 942,823.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,479.75 : 648,081 = 648,081 : x
  2. Step 2: Convert to fraction form
    445,479.75/648,081 = 648,081/x
  3. Step 3: Cross multiply
    445,479.75x = 648,081 × 648,081
  4. Step 4: Simplify right side
    445,479.75x = 420,008,982,561
  5. Step 5: Solve for x
    x = 420,008,982,561/445,479.75
  6. Step 6: Final answer
    x = 942,823.96

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.