Home / 327,438.36-491,155.92-282,928.86

Finding the Fourth Proportional to 327,438.36, 491,155.92 and 282,928.86

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Solution

The fourth proportional to 327,438.36, 491,155.92 and 282,928.86 is: 424,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,438.36 : 491,155.92 = 282,928.86 : x
  2. Step 2: Convert to fraction form
    327,438.36/491,155.92 = 282,928.86/x
  3. Step 3: Cross multiply
    327,438.36x = 491,155.92 × 282,928.86
  4. Step 4: Simplify right side
    327,438.36x = 138,962,184,527.85
  5. Step 5: Solve for x
    x = 138,962,184,527.85/327,438.36
  6. Step 6: Final answer
    x = 424,391.89

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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.