Home / 538,796.39-743,719.19-321,073.37

Finding the Fourth Proportional to 538,796.39, 743,719.19 and 321,073.37

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Solution

The fourth proportional to 538,796.39, 743,719.19 and 321,073.37 is: 443,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,796.39 : 743,719.19 = 321,073.37 : x
  2. Step 2: Convert to fraction form
    538,796.39/743,719.19 = 321,073.37/x
  3. Step 3: Cross multiply
    538,796.39x = 743,719.19 × 321,073.37
  4. Step 4: Simplify right side
    538,796.39x = 238,788,421,343.01
  5. Step 5: Solve for x
    x = 238,788,421,343.01/538,796.39
  6. Step 6: Final answer
    x = 443,188.61

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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.