Home / 2,986,972.20-4,480,020.90-856,834.20

Finding the Fourth Proportional to 2,986,972.20, 4,480,020.90 and 856,834.20

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Solution

The fourth proportional to 2,986,972.20, 4,480,020.90 and 856,834.20 is: 1,285,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,972.20 : 4,480,020.90 = 856,834.20 : x
  2. Step 2: Convert to fraction form
    2,986,972.20/4,480,020.90 = 856,834.20/x
  3. Step 3: Cross multiply
    2,986,972.20x = 4,480,020.90 × 856,834.20
  4. Step 4: Simplify right side
    2,986,972.20x = 3,838,635,123,834.78
  5. Step 5: Solve for x
    x = 3,838,635,123,834.78/2,986,972.20
  6. Step 6: Final answer
    x = 1,285,125.83

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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.