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Finding the Third Proportional to 303,789 and 664,765

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Solution

The third proportional to 303,789 and 664,765 is: 1,454,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,789 : 664,765 = 664,765 : x
  2. Step 2: Convert to fraction form
    303,789/664,765 = 664,765/x
  3. Step 3: Cross multiply
    303,789x = 664,765 × 664,765
  4. Step 4: Simplify right side
    303,789x = 441,912,505,225
  5. Step 5: Solve for x
    x = 441,912,505,225/303,789
  6. Step 6: Final answer
    x = 1,454,669.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.