Home / 538,708.23-743,422.17-296,999.37

Finding the Fourth Proportional to 538,708.23, 743,422.17 and 296,999.37

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Solution

The fourth proportional to 538,708.23, 743,422.17 and 296,999.37 is: 409,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,708.23 : 743,422.17 = 296,999.37 : x
  2. Step 2: Convert to fraction form
    538,708.23/743,422.17 = 296,999.37/x
  3. Step 3: Cross multiply
    538,708.23x = 743,422.17 × 296,999.37
  4. Step 4: Simplify right side
    538,708.23x = 220,795,916,134.03
  5. Step 5: Solve for x
    x = 220,795,916,134.03/538,708.23
  6. Step 6: Final answer
    x = 409,861.78

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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.