Home / 993,931.92-1,491,136.20-320,076.72

Finding the Fourth Proportional to 993,931.92, 1,491,136.20 and 320,076.72

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Solution

The fourth proportional to 993,931.92, 1,491,136.20 and 320,076.72 is: 480,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,931.92 : 1,491,136.20 = 320,076.72 : x
  2. Step 2: Convert to fraction form
    993,931.92/1,491,136.20 = 320,076.72/x
  3. Step 3: Cross multiply
    993,931.92x = 1,491,136.20 × 320,076.72
  4. Step 4: Simplify right side
    993,931.92x = 477,277,983,969.26
  5. Step 5: Solve for x
    x = 477,277,983,969.26/993,931.92
  6. Step 6: Final answer
    x = 480,191.83

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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.