Home / 1,212,511.77-1,819,380.83-807,979.41

Finding the Fourth Proportional to 1,212,511.77, 1,819,380.83 and 807,979.41

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Solution

The fourth proportional to 1,212,511.77, 1,819,380.83 and 807,979.41 is: 1,212,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,511.77 : 1,819,380.83 = 807,979.41 : x
  2. Step 2: Convert to fraction form
    1,212,511.77/1,819,380.83 = 807,979.41/x
  3. Step 3: Cross multiply
    1,212,511.77x = 1,819,380.83 × 807,979.41
  4. Step 4: Simplify right side
    1,212,511.77x = 1,470,022,245,548.81
  5. Step 5: Solve for x
    x = 1,470,022,245,548.81/1,212,511.77
  6. Step 6: Final answer
    x = 1,212,377.71

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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.