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Finding the Third Proportional to 290,469 and 632,613

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Solution

The third proportional to 290,469 and 632,613 is: 1,377,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,469 : 632,613 = 632,613 : x
  2. Step 2: Convert to fraction form
    290,469/632,613 = 632,613/x
  3. Step 3: Cross multiply
    290,469x = 632,613 × 632,613
  4. Step 4: Simplify right side
    290,469x = 400,199,207,769
  5. Step 5: Solve for x
    x = 400,199,207,769/290,469
  6. Step 6: Final answer
    x = 1,377,769.08

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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.