Home / 428,589.27-591,436.08-234,992.79

Finding the Fourth Proportional to 428,589.27, 591,436.08 and 234,992.79

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Solution

The fourth proportional to 428,589.27, 591,436.08 and 234,992.79 is: 324,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,589.27 : 591,436.08 = 234,992.79 : x
  2. Step 2: Convert to fraction form
    428,589.27/591,436.08 = 234,992.79/x
  3. Step 3: Cross multiply
    428,589.27x = 591,436.08 × 234,992.79
  4. Step 4: Simplify right side
    428,589.27x = 138,983,214,545.86
  5. Step 5: Solve for x
    x = 138,983,214,545.86/428,589.27
  6. Step 6: Final answer
    x = 324,280.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.