Home / 3,479,791.20-5,219,686.80-2,919,919.20

Finding the Fourth Proportional to 3,479,791.20, 5,219,686.80 and 2,919,919.20

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Solution

The fourth proportional to 3,479,791.20, 5,219,686.80 and 2,919,919.20 is: 4,379,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479,791.20 : 5,219,686.80 = 2,919,919.20 : x
  2. Step 2: Convert to fraction form
    3,479,791.20/5,219,686.80 = 2,919,919.20/x
  3. Step 3: Cross multiply
    3,479,791.20x = 5,219,686.80 × 2,919,919.20
  4. Step 4: Simplify right side
    3,479,791.20x = 15,241,063,705,306.56
  5. Step 5: Solve for x
    x = 15,241,063,705,306.56/3,479,791.20
  6. Step 6: Final answer
    x = 4,379,878.80

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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.