Home / 2,811,862.20-4,217,793.30-681,942.90

Finding the Fourth Proportional to 2,811,862.20, 4,217,793.30 and 681,942.90

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Solution

The fourth proportional to 2,811,862.20, 4,217,793.30 and 681,942.90 is: 1,022,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,862.20 : 4,217,793.30 = 681,942.90 : x
  2. Step 2: Convert to fraction form
    2,811,862.20/4,217,793.30 = 681,942.90/x
  3. Step 3: Cross multiply
    2,811,862.20x = 4,217,793.30 × 681,942.90
  4. Step 4: Simplify right side
    2,811,862.20x = 2,876,294,194,602.57
  5. Step 5: Solve for x
    x = 2,876,294,194,602.57/2,811,862.20
  6. Step 6: Final answer
    x = 1,022,914.35

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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.