Home / 428,579.85-591,416.87-237,620.73

Finding the Fourth Proportional to 428,579.85, 591,416.87 and 237,620.73

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Solution

The fourth proportional to 428,579.85, 591,416.87 and 237,620.73 is: 327,903.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,579.85 : 591,416.87 = 237,620.73 : x
  2. Step 2: Convert to fraction form
    428,579.85/591,416.87 = 237,620.73/x
  3. Step 3: Cross multiply
    428,579.85x = 591,416.87 × 237,620.73
  4. Step 4: Simplify right side
    428,579.85x = 140,532,907,195.61
  5. Step 5: Solve for x
    x = 140,532,907,195.61/428,579.85
  6. Step 6: Final answer
    x = 327,903.67

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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.