Home / 2,928,769.20-4,391,841.60-1,330,509.60

Finding the Fourth Proportional to 2,928,769.20, 4,391,841.60 and 1,330,509.60

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Solution

The fourth proportional to 2,928,769.20, 4,391,841.60 and 1,330,509.60 is: 1,995,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,769.20 : 4,391,841.60 = 1,330,509.60 : x
  2. Step 2: Convert to fraction form
    2,928,769.20/4,391,841.60 = 1,330,509.60/x
  3. Step 3: Cross multiply
    2,928,769.20x = 4,391,841.60 × 1,330,509.60
  4. Step 4: Simplify right side
    2,928,769.20x = 5,843,387,410,479.36
  5. Step 5: Solve for x
    x = 5,843,387,410,479.36/2,928,769.20
  6. Step 6: Final answer
    x = 1,995,168.28

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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.