Home / 1,993,960.80-2,990,941.20-1,285,372.80

Finding the Fourth Proportional to 1,993,960.80, 2,990,941.20 and 1,285,372.80

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Solution

The fourth proportional to 1,993,960.80, 2,990,941.20 and 1,285,372.80 is: 1,928,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,960.80 : 2,990,941.20 = 1,285,372.80 : x
  2. Step 2: Convert to fraction form
    1,993,960.80/2,990,941.20 = 1,285,372.80/x
  3. Step 3: Cross multiply
    1,993,960.80x = 2,990,941.20 × 1,285,372.80
  4. Step 4: Simplify right side
    1,993,960.80x = 3,844,474,464,879.36
  5. Step 5: Solve for x
    x = 3,844,474,464,879.36/1,993,960.80
  6. Step 6: Final answer
    x = 1,928,059.20

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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.