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Finding the Third Proportional to 490,107.75 and 749,580

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Solution

The third proportional to 490,107.75 and 749,580 is: 1,146,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,107.75 : 749,580 = 749,580 : x
  2. Step 2: Convert to fraction form
    490,107.75/749,580 = 749,580/x
  3. Step 3: Cross multiply
    490,107.75x = 749,580 × 749,580
  4. Step 4: Simplify right side
    490,107.75x = 561,870,176,400
  5. Step 5: Solve for x
    x = 561,870,176,400/490,107.75
  6. Step 6: Final answer
    x = 1,146,421.73

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.