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Finding the Fourth Proportional to 428,771.10, 591,740.49 and 237,846

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Solution

The fourth proportional to 428,771.10, 591,740.49 and 237,846 is: 328,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,771.10 : 591,740.49 = 237,846 : x
  2. Step 2: Convert to fraction form
    428,771.10/591,740.49 = 237,846/x
  3. Step 3: Cross multiply
    428,771.10x = 591,740.49 × 237,846
  4. Step 4: Simplify right side
    428,771.10x = 140,743,108,584.54
  5. Step 5: Solve for x
    x = 140,743,108,584.54/428,771.10
  6. Step 6: Final answer
    x = 328,247.66

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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.