Home / 428,503.46-591,340.72-234,929.36

Finding the Fourth Proportional to 428,503.46, 591,340.72 and 234,929.36

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Solution

The fourth proportional to 428,503.46, 591,340.72 and 234,929.36 is: 324,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,503.46 : 591,340.72 = 234,929.36 : x
  2. Step 2: Convert to fraction form
    428,503.46/591,340.72 = 234,929.36/x
  3. Step 3: Cross multiply
    428,503.46x = 591,340.72 × 234,929.36
  4. Step 4: Simplify right side
    428,503.46x = 138,923,296,891.54
  5. Step 5: Solve for x
    x = 138,923,296,891.54/428,503.46
  6. Step 6: Final answer
    x = 324,205.78

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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.