Home / 428,318.94-591,071.31-237,330.66

Finding the Fourth Proportional to 428,318.94, 591,071.31 and 237,330.66

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Solution

The fourth proportional to 428,318.94, 591,071.31 and 237,330.66 is: 327,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,318.94 : 591,071.31 = 237,330.66 : x
  2. Step 2: Convert to fraction form
    428,318.94/591,071.31 = 237,330.66/x
  3. Step 3: Cross multiply
    428,318.94x = 591,071.31 × 237,330.66
  4. Step 4: Simplify right side
    428,318.94x = 140,279,344,109.37
  5. Step 5: Solve for x
    x = 140,279,344,109.37/428,318.94
  6. Step 6: Final answer
    x = 327,511.42

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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.