Home / 1,993,137.20-2,750,618.78-1,122,271.38

Finding the Fourth Proportional to 1,993,137.20, 2,750,618.78 and 1,122,271.38

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Solution

The fourth proportional to 1,993,137.20, 2,750,618.78 and 1,122,271.38 is: 1,548,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,137.20 : 2,750,618.78 = 1,122,271.38 : x
  2. Step 2: Convert to fraction form
    1,993,137.20/2,750,618.78 = 1,122,271.38/x
  3. Step 3: Cross multiply
    1,993,137.20x = 2,750,618.78 × 1,122,271.38
  4. Step 4: Simplify right side
    1,993,137.20x = 3,086,940,734,084.52
  5. Step 5: Solve for x
    x = 3,086,940,734,084.52/1,993,137.20
  6. Step 6: Final answer
    x = 1,548,784.87

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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.