Home / 428,974.25-591,992.28-235,391.94

Finding the Fourth Proportional to 428,974.25, 591,992.28 and 235,391.94

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Solution

The fourth proportional to 428,974.25, 591,992.28 and 235,391.94 is: 324,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,974.25 : 591,992.28 = 235,391.94 : x
  2. Step 2: Convert to fraction form
    428,974.25/591,992.28 = 235,391.94/x
  3. Step 3: Cross multiply
    428,974.25x = 591,992.28 × 235,391.94
  4. Step 4: Simplify right side
    428,974.25x = 139,350,211,254.22
  5. Step 5: Solve for x
    x = 139,350,211,254.22/428,974.25
  6. Step 6: Final answer
    x = 324,845.17

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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.