Home / 993,936.92-1,491,143.70-320,081.72

Finding the Fourth Proportional to 993,936.92, 1,491,143.70 and 320,081.72

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Solution

The fourth proportional to 993,936.92, 1,491,143.70 and 320,081.72 is: 480,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,936.92 : 1,491,143.70 = 320,081.72 : x
  2. Step 2: Convert to fraction form
    993,936.92/1,491,143.70 = 320,081.72/x
  3. Step 3: Cross multiply
    993,936.92x = 1,491,143.70 × 320,081.72
  4. Step 4: Simplify right side
    993,936.92x = 477,287,840,263.16
  5. Step 5: Solve for x
    x = 477,287,840,263.16/993,936.92
  6. Step 6: Final answer
    x = 480,199.33

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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.