Home / 1,993,728.60-2,992,155.39-1,390,767.84

Finding the Fourth Proportional to 1,993,728.60, 2,992,155.39 and 1,390,767.84

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Solution

The fourth proportional to 1,993,728.60, 2,992,155.39 and 1,390,767.84 is: 2,087,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,728.60 : 2,992,155.39 = 1,390,767.84 : x
  2. Step 2: Convert to fraction form
    1,993,728.60/2,992,155.39 = 1,390,767.84/x
  3. Step 3: Cross multiply
    1,993,728.60x = 2,992,155.39 × 1,390,767.84
  4. Step 4: Simplify right side
    1,993,728.60x = 4,161,393,488,694.66
  5. Step 5: Solve for x
    x = 4,161,393,488,694.66/1,993,728.60
  6. Step 6: Final answer
    x = 2,087,241.71

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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.