Home / 2,961,144.80-4,443,790.80-1,279,455.20

Finding the Fourth Proportional to 2,961,144.80, 4,443,790.80 and 1,279,455.20

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Solution

The fourth proportional to 2,961,144.80, 4,443,790.80 and 1,279,455.20 is: 1,920,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961,144.80 : 4,443,790.80 = 1,279,455.20 : x
  2. Step 2: Convert to fraction form
    2,961,144.80/4,443,790.80 = 1,279,455.20/x
  3. Step 3: Cross multiply
    2,961,144.80x = 4,443,790.80 × 1,279,455.20
  4. Step 4: Simplify right side
    2,961,144.80x = 5,685,631,246,772.16
  5. Step 5: Solve for x
    x = 5,685,631,246,772.16/2,961,144.80
  6. Step 6: Final answer
    x = 1,920,078.76

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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.