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Finding the Third Proportional to 490,609.50 and 719,759.25

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Solution

The third proportional to 490,609.50 and 719,759.25 is: 1,055,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,609.50 : 719,759.25 = 719,759.25 : x
  2. Step 2: Convert to fraction form
    490,609.50/719,759.25 = 719,759.25/x
  3. Step 3: Cross multiply
    490,609.50x = 719,759.25 × 719,759.25
  4. Step 4: Simplify right side
    490,609.50x = 518,053,377,960.56
  5. Step 5: Solve for x
    x = 518,053,377,960.56/490,609.50
  6. Step 6: Final answer
    x = 1,055,938.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.