Home / 1,191,866.21-1,787,854.39-393,217.55

Finding the Fourth Proportional to 1,191,866.21, 1,787,854.39 and 393,217.55

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Solution

The fourth proportional to 1,191,866.21, 1,787,854.39 and 393,217.55 is: 589,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,866.21 : 1,787,854.39 = 393,217.55 : x
  2. Step 2: Convert to fraction form
    1,191,866.21/1,787,854.39 = 393,217.55/x
  3. Step 3: Cross multiply
    1,191,866.21x = 1,787,854.39 × 393,217.55
  4. Step 4: Simplify right side
    1,191,866.21x = 703,015,722,992.54
  5. Step 5: Solve for x
    x = 703,015,722,992.54/1,191,866.21
  6. Step 6: Final answer
    x = 589,844.50

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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.