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Finding the Third Proportional to 300,888 and 660,816

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Solution

The third proportional to 300,888 and 660,816 is: 1,451,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,888 : 660,816 = 660,816 : x
  2. Step 2: Convert to fraction form
    300,888/660,816 = 660,816/x
  3. Step 3: Cross multiply
    300,888x = 660,816 × 660,816
  4. Step 4: Simplify right side
    300,888x = 436,677,785,856
  5. Step 5: Solve for x
    x = 436,677,785,856/300,888
  6. Step 6: Final answer
    x = 1,451,296.78

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.