Home / 3,217,195.92-4,825,789.80-821,040.61

Finding the Fourth Proportional to 3,217,195.92, 4,825,789.80 and 821,040.61

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Solution

The fourth proportional to 3,217,195.92, 4,825,789.80 and 821,040.61 is: 1,231,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,195.92 : 4,825,789.80 = 821,040.61 : x
  2. Step 2: Convert to fraction form
    3,217,195.92/4,825,789.80 = 821,040.61/x
  3. Step 3: Cross multiply
    3,217,195.92x = 4,825,789.80 × 821,040.61
  4. Step 4: Simplify right side
    3,217,195.92x = 3,962,169,401,123.78
  5. Step 5: Solve for x
    x = 3,962,169,401,123.78/3,217,195.92
  6. Step 6: Final answer
    x = 1,231,559.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.