Home / 3,298,587.20-4,945,000.80-1,278,209.60

Finding the Fourth Proportional to 3,298,587.20, 4,945,000.80 and 1,278,209.60

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Solution

The fourth proportional to 3,298,587.20, 4,945,000.80 and 1,278,209.60 is: 1,916,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298,587.20 : 4,945,000.80 = 1,278,209.60 : x
  2. Step 2: Convert to fraction form
    3,298,587.20/4,945,000.80 = 1,278,209.60/x
  3. Step 3: Cross multiply
    3,298,587.20x = 4,945,000.80 × 1,278,209.60
  4. Step 4: Simplify right side
    3,298,587.20x = 6,320,747,494,567.68
  5. Step 5: Solve for x
    x = 6,320,747,494,567.68/3,298,587.20
  6. Step 6: Final answer
    x = 1,916,198.39

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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.