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Finding the Fourth Proportional to 428,812.10, 591,797.04 and 237,887

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Solution

The fourth proportional to 428,812.10, 591,797.04 and 237,887 is: 328,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,812.10 : 591,797.04 = 237,887 : x
  2. Step 2: Convert to fraction form
    428,812.10/591,797.04 = 237,887/x
  3. Step 3: Cross multiply
    428,812.10x = 591,797.04 × 237,887
  4. Step 4: Simplify right side
    428,812.10x = 140,780,822,454.48
  5. Step 5: Solve for x
    x = 140,780,822,454.48/428,812.10
  6. Step 6: Final answer
    x = 328,304.22

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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.