Home / 440,629.68-660,944.89-120,785.03

Finding the Fourth Proportional to 440,629.68, 660,944.89 and 120,785.03

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Solution

The fourth proportional to 440,629.68, 660,944.89 and 120,785.03 is: 181,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,629.68 : 660,944.89 = 120,785.03 : x
  2. Step 2: Convert to fraction form
    440,629.68/660,944.89 = 120,785.03/x
  3. Step 3: Cross multiply
    440,629.68x = 660,944.89 × 120,785.03
  4. Step 4: Simplify right side
    440,629.68x = 79,832,245,062.27
  5. Step 5: Solve for x
    x = 79,832,245,062.27/440,629.68
  6. Step 6: Final answer
    x = 181,177.64

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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.