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Finding the Fourth Proportional to 428,093.38, 590,773.22 and 258,294.70

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Solution

The fourth proportional to 428,093.38, 590,773.22 and 258,294.70 is: 356,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,093.38 : 590,773.22 = 258,294.70 : x
  2. Step 2: Convert to fraction form
    428,093.38/590,773.22 = 258,294.70/x
  3. Step 3: Cross multiply
    428,093.38x = 590,773.22 × 258,294.70
  4. Step 4: Simplify right side
    428,093.38x = 152,593,591,627.93
  5. Step 5: Solve for x
    x = 152,593,591,627.93/428,093.38
  6. Step 6: Final answer
    x = 356,449.31

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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.