Home / 1,762,072.70-2,643,109.05-1,085,961.65

Finding the Fourth Proportional to 1,762,072.70, 2,643,109.05 and 1,085,961.65

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Solution

The fourth proportional to 1,762,072.70, 2,643,109.05 and 1,085,961.65 is: 1,628,942.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,072.70 : 2,643,109.05 = 1,085,961.65 : x
  2. Step 2: Convert to fraction form
    1,762,072.70/2,643,109.05 = 1,085,961.65/x
  3. Step 3: Cross multiply
    1,762,072.70x = 2,643,109.05 × 1,085,961.65
  4. Step 4: Simplify right side
    1,762,072.70x = 2,870,315,065,067.93
  5. Step 5: Solve for x
    x = 2,870,315,065,067.93/1,762,072.70
  6. Step 6: Final answer
    x = 1,628,942.48

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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.