Home / 994,099.80-1,491,149.70-320,179.80

Finding the Fourth Proportional to 994,099.80, 1,491,149.70 and 320,179.80

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Solution

The fourth proportional to 994,099.80, 1,491,149.70 and 320,179.80 is: 480,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,099.80 : 1,491,149.70 = 320,179.80 : x
  2. Step 2: Convert to fraction form
    994,099.80/1,491,149.70 = 320,179.80/x
  3. Step 3: Cross multiply
    994,099.80x = 1,491,149.70 × 320,179.80
  4. Step 4: Simplify right side
    994,099.80x = 477,436,012,716.06
  5. Step 5: Solve for x
    x = 477,436,012,716.06/994,099.80
  6. Step 6: Final answer
    x = 480,269.70

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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.