Home / 787,049.28-1,181,203.20-408,077.64

Finding the Fourth Proportional to 787,049.28, 1,181,203.20 and 408,077.64

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Solution

The fourth proportional to 787,049.28, 1,181,203.20 and 408,077.64 is: 612,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,049.28 : 1,181,203.20 = 408,077.64 : x
  2. Step 2: Convert to fraction form
    787,049.28/1,181,203.20 = 408,077.64/x
  3. Step 3: Cross multiply
    787,049.28x = 1,181,203.20 × 408,077.64
  4. Step 4: Simplify right side
    787,049.28x = 482,022,614,216.45
  5. Step 5: Solve for x
    x = 482,022,614,216.45/787,049.28
  6. Step 6: Final answer
    x = 612,442.74

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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.