Home / 993,937.92-1,491,145.20-320,082.72

Finding the Fourth Proportional to 993,937.92, 1,491,145.20 and 320,082.72

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Solution

The fourth proportional to 993,937.92, 1,491,145.20 and 320,082.72 is: 480,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,937.92 : 1,491,145.20 = 320,082.72 : x
  2. Step 2: Convert to fraction form
    993,937.92/1,491,145.20 = 320,082.72/x
  3. Step 3: Cross multiply
    993,937.92x = 1,491,145.20 × 320,082.72
  4. Step 4: Simplify right side
    993,937.92x = 477,289,811,530.94
  5. Step 5: Solve for x
    x = 477,289,811,530.94/993,937.92
  6. Step 6: Final answer
    x = 480,200.83

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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.