Home / 2,179,518.90-3,007,879.82-1,212,651.19

Finding the Fourth Proportional to 2,179,518.90, 3,007,879.82 and 1,212,651.19

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Solution

The fourth proportional to 2,179,518.90, 3,007,879.82 and 1,212,651.19 is: 1,673,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,518.90 : 3,007,879.82 = 1,212,651.19 : x
  2. Step 2: Convert to fraction form
    2,179,518.90/3,007,879.82 = 1,212,651.19/x
  3. Step 3: Cross multiply
    2,179,518.90x = 3,007,879.82 × 1,212,651.19
  4. Step 4: Simplify right side
    2,179,518.90x = 3,647,509,043,099.99
  5. Step 5: Solve for x
    x = 3,647,509,043,099.99/2,179,518.90
  6. Step 6: Final answer
    x = 1,673,538.62

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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.