Home / 1,282,217.20-1,921,770.60-571,490.80

Finding the Fourth Proportional to 1,282,217.20, 1,921,770.60 and 571,490.80

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Solution

The fourth proportional to 1,282,217.20, 1,921,770.60 and 571,490.80 is: 856,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,217.20 : 1,921,770.60 = 571,490.80 : x
  2. Step 2: Convert to fraction form
    1,282,217.20/1,921,770.60 = 571,490.80/x
  3. Step 3: Cross multiply
    1,282,217.20x = 1,921,770.60 × 571,490.80
  4. Step 4: Simplify right side
    1,282,217.20x = 1,098,274,217,610.48
  5. Step 5: Solve for x
    x = 1,098,274,217,610.48/1,282,217.20
  6. Step 6: Final answer
    x = 856,543.04

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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.