Home / 428,351.06-591,117.36-234,757.28

Finding the Fourth Proportional to 428,351.06, 591,117.36 and 234,757.28

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Solution

The fourth proportional to 428,351.06, 591,117.36 and 234,757.28 is: 323,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,351.06 : 591,117.36 = 234,757.28 : x
  2. Step 2: Convert to fraction form
    428,351.06/591,117.36 = 234,757.28/x
  3. Step 3: Cross multiply
    428,351.06x = 591,117.36 × 234,757.28
  4. Step 4: Simplify right side
    428,351.06x = 138,769,100,638.79
  5. Step 5: Solve for x
    x = 138,769,100,638.79/428,351.06
  6. Step 6: Final answer
    x = 323,961.15

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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.