Home / 428,221.28-590,919.81-237,220.85

Finding the Fourth Proportional to 428,221.28, 590,919.81 and 237,220.85

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Solution

The fourth proportional to 428,221.28, 590,919.81 and 237,220.85 is: 327,350.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,221.28 : 590,919.81 = 237,220.85 : x
  2. Step 2: Convert to fraction form
    428,221.28/590,919.81 = 237,220.85/x
  3. Step 3: Cross multiply
    428,221.28x = 590,919.81 × 237,220.85
  4. Step 4: Simplify right side
    428,221.28x = 140,178,500,197.76
  5. Step 5: Solve for x
    x = 140,178,500,197.76/428,221.28
  6. Step 6: Final answer
    x = 327,350.62

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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.