Home / 428,685.97-591,532.26-235,042.72

Finding the Fourth Proportional to 428,685.97, 591,532.26 and 235,042.72

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Solution

The fourth proportional to 428,685.97, 591,532.26 and 235,042.72 is: 324,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,685.97 : 591,532.26 = 235,042.72 : x
  2. Step 2: Convert to fraction form
    428,685.97/591,532.26 = 235,042.72/x
  3. Step 3: Cross multiply
    428,685.97x = 591,532.26 × 235,042.72
  4. Step 4: Simplify right side
    428,685.97x = 139,035,351,358.15
  5. Step 5: Solve for x
    x = 139,035,351,358.15/428,685.97
  6. Step 6: Final answer
    x = 324,329.14

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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.