Home / 1,109,259.58-1,659,511.49-840,162.90

Finding the Fourth Proportional to 1,109,259.58, 1,659,511.49 and 840,162.90

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Solution

The fourth proportional to 1,109,259.58, 1,659,511.49 and 840,162.90 is: 1,256,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,259.58 : 1,659,511.49 = 840,162.90 : x
  2. Step 2: Convert to fraction form
    1,109,259.58/1,659,511.49 = 840,162.90/x
  3. Step 3: Cross multiply
    1,109,259.58x = 1,659,511.49 × 840,162.90
  4. Step 4: Simplify right side
    1,109,259.58x = 1,394,259,986,021.72
  5. Step 5: Solve for x
    x = 1,394,259,986,021.72/1,109,259.58
  6. Step 6: Final answer
    x = 1,256,928.51

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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.