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Finding the Third Proportional to 297,118 and 648,668

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Solution

The third proportional to 297,118 and 648,668 is: 1,416,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,118 : 648,668 = 648,668 : x
  2. Step 2: Convert to fraction form
    297,118/648,668 = 648,668/x
  3. Step 3: Cross multiply
    297,118x = 648,668 × 648,668
  4. Step 4: Simplify right side
    297,118x = 420,770,174,224
  5. Step 5: Solve for x
    x = 420,770,174,224/297,118
  6. Step 6: Final answer
    x = 1,416,171.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.