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Finding the Fourth Proportional to 428,597.88, 591,479.48 and 237,599.88

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Solution

The fourth proportional to 428,597.88, 591,479.48 and 237,599.88 is: 327,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,597.88 : 591,479.48 = 237,599.88 : x
  2. Step 2: Convert to fraction form
    428,597.88/591,479.48 = 237,599.88/x
  3. Step 3: Cross multiply
    428,597.88x = 591,479.48 × 237,599.88
  4. Step 4: Simplify right side
    428,597.88x = 140,535,453,470.46
  5. Step 5: Solve for x
    x = 140,535,453,470.46/428,597.88
  6. Step 6: Final answer
    x = 327,895.82

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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.