Home / 1,398,629.80-2,094,834.30-1,212,005.80

Finding the Fourth Proportional to 1,398,629.80, 2,094,834.30 and 1,212,005.80

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Solution

The fourth proportional to 1,398,629.80, 2,094,834.30 and 1,212,005.80 is: 1,815,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,629.80 : 2,094,834.30 = 1,212,005.80 : x
  2. Step 2: Convert to fraction form
    1,398,629.80/2,094,834.30 = 1,212,005.80/x
  3. Step 3: Cross multiply
    1,398,629.80x = 2,094,834.30 × 1,212,005.80
  4. Step 4: Simplify right side
    1,398,629.80x = 2,538,951,321,638.94
  5. Step 5: Solve for x
    x = 2,538,951,321,638.94/1,398,629.80
  6. Step 6: Final answer
    x = 1,815,313.33

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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.