Home / 2,015,979.20-3,019,821.60-1,385,604.80

Finding the Fourth Proportional to 2,015,979.20, 3,019,821.60 and 1,385,604.80

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Solution

The fourth proportional to 2,015,979.20, 3,019,821.60 and 1,385,604.80 is: 2,075,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,979.20 : 3,019,821.60 = 1,385,604.80 : x
  2. Step 2: Convert to fraction form
    2,015,979.20/3,019,821.60 = 1,385,604.80/x
  3. Step 3: Cross multiply
    2,015,979.20x = 3,019,821.60 × 1,385,604.80
  4. Step 4: Simplify right side
    2,015,979.20x = 4,184,279,304,103.68
  5. Step 5: Solve for x
    x = 4,184,279,304,103.68/2,015,979.20
  6. Step 6: Final answer
    x = 2,075,556.78

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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.