Home / 1,382,049.86-1,907,293.74-809,274.56

Finding the Fourth Proportional to 1,382,049.86, 1,907,293.74 and 809,274.56

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Solution

The fourth proportional to 1,382,049.86, 1,907,293.74 and 809,274.56 is: 1,116,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,049.86 : 1,907,293.74 = 809,274.56 : x
  2. Step 2: Convert to fraction form
    1,382,049.86/1,907,293.74 = 809,274.56/x
  3. Step 3: Cross multiply
    1,382,049.86x = 1,907,293.74 × 809,274.56
  4. Step 4: Simplify right side
    1,382,049.86x = 1,543,524,302,229.25
  5. Step 5: Solve for x
    x = 1,543,524,302,229.25/1,382,049.86
  6. Step 6: Final answer
    x = 1,116,836.92

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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.