Home / 428,353.54-591,131.40-237,370.12

Finding the Fourth Proportional to 428,353.54, 591,131.40 and 237,370.12

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Solution

The fourth proportional to 428,353.54, 591,131.40 and 237,370.12 is: 327,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,353.54 : 591,131.40 = 237,370.12 : x
  2. Step 2: Convert to fraction form
    428,353.54/591,131.40 = 237,370.12/x
  3. Step 3: Cross multiply
    428,353.54x = 591,131.40 × 237,370.12
  4. Step 4: Simplify right side
    428,353.54x = 140,316,928,398.11
  5. Step 5: Solve for x
    x = 140,316,928,398.11/428,353.54
  6. Step 6: Final answer
    x = 327,572.71

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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.