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Finding the Fourth Proportional to 428,697.52, 591,601.56 and 237,706

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Solution

The fourth proportional to 428,697.52, 591,601.56 and 237,706 is: 328,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,697.52 : 591,601.56 = 237,706 : x
  2. Step 2: Convert to fraction form
    428,697.52/591,601.56 = 237,706/x
  3. Step 3: Cross multiply
    428,697.52x = 591,601.56 × 237,706
  4. Step 4: Simplify right side
    428,697.52x = 140,627,240,421.36
  5. Step 5: Solve for x
    x = 140,627,240,421.36/428,697.52
  6. Step 6: Final answer
    x = 328,033.72

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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.