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Finding the Fourth Proportional to 428,351.44, 591,128.46 and 237,368.02

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Solution

The fourth proportional to 428,351.44, 591,128.46 and 237,368.02 is: 327,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,351.44 : 591,128.46 = 237,368.02 : x
  2. Step 2: Convert to fraction form
    428,351.44/591,128.46 = 237,368.02/x
  3. Step 3: Cross multiply
    428,351.44x = 591,128.46 × 237,368.02
  4. Step 4: Simplify right side
    428,351.44x = 140,314,992,115.85
  5. Step 5: Solve for x
    x = 140,314,992,115.85/428,351.44
  6. Step 6: Final answer
    x = 327,569.79

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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.