Home / 428,473.26-591,481.46-299,916.62

Finding the Fourth Proportional to 428,473.26, 591,481.46 and 299,916.62

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Solution

The fourth proportional to 428,473.26, 591,481.46 and 299,916.62 is: 414,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,473.26 : 591,481.46 = 299,916.62 : x
  2. Step 2: Convert to fraction form
    428,473.26/591,481.46 = 299,916.62/x
  3. Step 3: Cross multiply
    428,473.26x = 591,481.46 × 299,916.62
  4. Step 4: Simplify right side
    428,473.26x = 177,395,120,254.99
  5. Step 5: Solve for x
    x = 177,395,120,254.99/428,473.26
  6. Step 6: Final answer
    x = 414,016.78

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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.