Home / 2,149,205.90-2,965,928.69-1,231,416.57

Finding the Fourth Proportional to 2,149,205.90, 2,965,928.69 and 1,231,416.57

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Solution

The fourth proportional to 2,149,205.90, 2,965,928.69 and 1,231,416.57 is: 1,699,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149,205.90 : 2,965,928.69 = 1,231,416.57 : x
  2. Step 2: Convert to fraction form
    2,149,205.90/2,965,928.69 = 1,231,416.57/x
  3. Step 3: Cross multiply
    2,149,205.90x = 2,965,928.69 × 1,231,416.57
  4. Step 4: Simplify right side
    2,149,205.90x = 3,652,293,728,147.31
  5. Step 5: Solve for x
    x = 3,652,293,728,147.31/2,149,205.90
  6. Step 6: Final answer
    x = 1,699,368.93

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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.