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Finding the Fourth Proportional to 719,804.67, 1,080,371.20 and 365,067.80

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Solution

The fourth proportional to 719,804.67, 1,080,371.20 and 365,067.80 is: 547,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,804.67 : 1,080,371.20 = 365,067.80 : x
  2. Step 2: Convert to fraction form
    719,804.67/1,080,371.20 = 365,067.80/x
  3. Step 3: Cross multiply
    719,804.67x = 1,080,371.20 × 365,067.80
  4. Step 4: Simplify right side
    719,804.67x = 394,408,737,167.36
  5. Step 5: Solve for x
    x = 394,408,737,167.36/719,804.67
  6. Step 6: Final answer
    x = 547,938.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.