Home / 2,257,220.20-3,385,941-909,200.78

Finding the Fourth Proportional to 2,257,220.20, 3,385,941 and 909,200.78

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Solution

The fourth proportional to 2,257,220.20, 3,385,941 and 909,200.78 is: 1,363,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,220.20 : 3,385,941 = 909,200.78 : x
  2. Step 2: Convert to fraction form
    2,257,220.20/3,385,941 = 909,200.78/x
  3. Step 3: Cross multiply
    2,257,220.20x = 3,385,941 × 909,200.78
  4. Step 4: Simplify right side
    2,257,220.20x = 3,078,500,198,233.98
  5. Step 5: Solve for x
    x = 3,078,500,198,233.98/2,257,220.20
  6. Step 6: Final answer
    x = 1,363,845.76

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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.