Home / 428,513.96-591,355.26-234,939.92

Finding the Fourth Proportional to 428,513.96, 591,355.26 and 234,939.92

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Solution

The fourth proportional to 428,513.96, 591,355.26 and 234,939.92 is: 324,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,513.96 : 591,355.26 = 234,939.92 : x
  2. Step 2: Convert to fraction form
    428,513.96/591,355.26 = 234,939.92/x
  3. Step 3: Cross multiply
    428,513.96x = 591,355.26 × 234,939.92
  4. Step 4: Simplify right side
    428,513.96x = 138,932,957,475.98
  5. Step 5: Solve for x
    x = 138,932,957,475.98/428,513.96
  6. Step 6: Final answer
    x = 324,220.38

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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.