Home / 1,119,815.97-1,679,229.85-320,916.21

Finding the Fourth Proportional to 1,119,815.97, 1,679,229.85 and 320,916.21

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Solution

The fourth proportional to 1,119,815.97, 1,679,229.85 and 320,916.21 is: 481,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,815.97 : 1,679,229.85 = 320,916.21 : x
  2. Step 2: Convert to fraction form
    1,119,815.97/1,679,229.85 = 320,916.21/x
  3. Step 3: Cross multiply
    1,119,815.97x = 1,679,229.85 × 320,916.21
  4. Step 4: Simplify right side
    1,119,815.97x = 538,892,079,180.87
  5. Step 5: Solve for x
    x = 538,892,079,180.87/1,119,815.97
  6. Step 6: Final answer
    x = 481,232.71

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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.