Home / 913,791.98-1,371,183.88-381,359.54

Finding the Fourth Proportional to 913,791.98, 1,371,183.88 and 381,359.54

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Solution

The fourth proportional to 913,791.98, 1,371,183.88 and 381,359.54 is: 572,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,791.98 : 1,371,183.88 = 381,359.54 : x
  2. Step 2: Convert to fraction form
    913,791.98/1,371,183.88 = 381,359.54/x
  3. Step 3: Cross multiply
    913,791.98x = 1,371,183.88 × 381,359.54
  4. Step 4: Simplify right side
    913,791.98x = 522,914,053,732.22
  5. Step 5: Solve for x
    x = 522,914,053,732.22/913,791.98
  6. Step 6: Final answer
    x = 572,246.27

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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.