Home / 2,790,356.40-4,185,923.40-1,192,906.80

Finding the Fourth Proportional to 2,790,356.40, 4,185,923.40 and 1,192,906.80

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Solution

The fourth proportional to 2,790,356.40, 4,185,923.40 and 1,192,906.80 is: 1,789,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,356.40 : 4,185,923.40 = 1,192,906.80 : x
  2. Step 2: Convert to fraction form
    2,790,356.40/4,185,923.40 = 1,192,906.80/x
  3. Step 3: Cross multiply
    2,790,356.40x = 4,185,923.40 × 1,192,906.80
  4. Step 4: Simplify right side
    2,790,356.40x = 4,993,416,488,139.12
  5. Step 5: Solve for x
    x = 4,993,416,488,139.12/2,790,356.40
  6. Step 6: Final answer
    x = 1,789,526.42

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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.