Home / 809,737.20-1,215,340.20-410,655.60

Finding the Fourth Proportional to 809,737.20, 1,215,340.20 and 410,655.60

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Solution

The fourth proportional to 809,737.20, 1,215,340.20 and 410,655.60 is: 616,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,737.20 : 1,215,340.20 = 410,655.60 : x
  2. Step 2: Convert to fraction form
    809,737.20/1,215,340.20 = 410,655.60/x
  3. Step 3: Cross multiply
    809,737.20x = 1,215,340.20 × 410,655.60
  4. Step 4: Simplify right side
    809,737.20x = 499,086,259,035.12
  5. Step 5: Solve for x
    x = 499,086,259,035.12/809,737.20
  6. Step 6: Final answer
    x = 616,355.85

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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.