Home / 855,352.20-1,283,028.30-656,286.60

Finding the Fourth Proportional to 855,352.20, 1,283,028.30 and 656,286.60

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Solution

The fourth proportional to 855,352.20, 1,283,028.30 and 656,286.60 is: 984,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,352.20 : 1,283,028.30 = 656,286.60 : x
  2. Step 2: Convert to fraction form
    855,352.20/1,283,028.30 = 656,286.60/x
  3. Step 3: Cross multiply
    855,352.20x = 1,283,028.30 × 656,286.60
  4. Step 4: Simplify right side
    855,352.20x = 842,034,280,710.78
  5. Step 5: Solve for x
    x = 842,034,280,710.78/855,352.20
  6. Step 6: Final answer
    x = 984,429.90

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Similar ratio
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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.