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Finding the Third Proportional to 490,448 and 659,080

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Solution

The third proportional to 490,448 and 659,080 is: 885,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,448 : 659,080 = 659,080 : x
  2. Step 2: Convert to fraction form
    490,448/659,080 = 659,080/x
  3. Step 3: Cross multiply
    490,448x = 659,080 × 659,080
  4. Step 4: Simplify right side
    490,448x = 434,386,446,400
  5. Step 5: Solve for x
    x = 434,386,446,400/490,448
  6. Step 6: Final answer
    x = 885,693.18

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.