Home / 428,620.68-591,496.56-237,629.88

Finding the Fourth Proportional to 428,620.68, 591,496.56 and 237,629.88

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Solution

The fourth proportional to 428,620.68, 591,496.56 and 237,629.88 is: 327,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,620.68 : 591,496.56 = 237,629.88 : x
  2. Step 2: Convert to fraction form
    428,620.68/591,496.56 = 237,629.88/x
  3. Step 3: Cross multiply
    428,620.68x = 591,496.56 × 237,629.88
  4. Step 4: Simplify right side
    428,620.68x = 140,557,256,573.21
  5. Step 5: Solve for x
    x = 140,557,256,573.21/428,620.68
  6. Step 6: Final answer
    x = 327,929.25

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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.