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Finding the Fourth Proportional to 428,791.37, 591,768.41 and 237,866.25

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Solution

The fourth proportional to 428,791.37, 591,768.41 and 237,866.25 is: 328,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,791.37 : 591,768.41 = 237,866.25 : x
  2. Step 2: Convert to fraction form
    428,791.37/591,768.41 = 237,866.25/x
  3. Step 3: Cross multiply
    428,791.37x = 591,768.41 × 237,866.25
  4. Step 4: Simplify right side
    428,791.37x = 140,761,731,365.83
  5. Step 5: Solve for x
    x = 140,761,731,365.83/428,791.37
  6. Step 6: Final answer
    x = 328,275.57

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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.