Home / 1,209,115.11-1,667,942.88-718,735.82

Finding the Fourth Proportional to 1,209,115.11, 1,667,942.88 and 718,735.82

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Solution

The fourth proportional to 1,209,115.11, 1,667,942.88 and 718,735.82 is: 991,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,115.11 : 1,667,942.88 = 718,735.82 : x
  2. Step 2: Convert to fraction form
    1,209,115.11/1,667,942.88 = 718,735.82/x
  3. Step 3: Cross multiply
    1,209,115.11x = 1,667,942.88 × 718,735.82
  4. Step 4: Simplify right side
    1,209,115.11x = 1,198,810,285,230.25
  5. Step 5: Solve for x
    x = 1,198,810,285,230.25/1,209,115.11
  6. Step 6: Final answer
    x = 991,477.38

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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.