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Finding the Third Proportional to 311,914 and 675,668

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Solution

The third proportional to 311,914 and 675,668 is: 1,463,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,914 : 675,668 = 675,668 : x
  2. Step 2: Convert to fraction form
    311,914/675,668 = 675,668/x
  3. Step 3: Cross multiply
    311,914x = 675,668 × 675,668
  4. Step 4: Simplify right side
    311,914x = 456,527,246,224
  5. Step 5: Solve for x
    x = 456,527,246,224/311,914
  6. Step 6: Final answer
    x = 1,463,631.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.