Home / 800,855.20-1,200,928.56-239,785.12

Finding the Fourth Proportional to 800,855.20, 1,200,928.56 and 239,785.12

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Solution

The fourth proportional to 800,855.20, 1,200,928.56 and 239,785.12 is: 359,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,855.20 : 1,200,928.56 = 239,785.12 : x
  2. Step 2: Convert to fraction form
    800,855.20/1,200,928.56 = 239,785.12/x
  3. Step 3: Cross multiply
    800,855.20x = 1,200,928.56 × 239,785.12
  4. Step 4: Simplify right side
    800,855.20x = 287,964,798,871.03
  5. Step 5: Solve for x
    x = 287,964,798,871.03/800,855.20
  6. Step 6: Final answer
    x = 359,571.62

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1.5x scale

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.