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Finding the Fourth Proportional to 782,996.76, 1,080,610.92 and 438,831

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Solution

The fourth proportional to 782,996.76, 1,080,610.92 and 438,831 is: 605,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,996.76 : 1,080,610.92 = 438,831 : x
  2. Step 2: Convert to fraction form
    782,996.76/1,080,610.92 = 438,831/x
  3. Step 3: Cross multiply
    782,996.76x = 1,080,610.92 × 438,831
  4. Step 4: Simplify right side
    782,996.76x = 474,205,570,634.52
  5. Step 5: Solve for x
    x = 474,205,570,634.52/782,996.76
  6. Step 6: Final answer
    x = 605,629.03

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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.