Home / 1,087,520.40-1,629,725.40-800,974.80

Finding the Fourth Proportional to 1,087,520.40, 1,629,725.40 and 800,974.80

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Solution

The fourth proportional to 1,087,520.40, 1,629,725.40 and 800,974.80 is: 1,200,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,520.40 : 1,629,725.40 = 800,974.80 : x
  2. Step 2: Convert to fraction form
    1,087,520.40/1,629,725.40 = 800,974.80/x
  3. Step 3: Cross multiply
    1,087,520.40x = 1,629,725.40 × 800,974.80
  4. Step 4: Simplify right side
    1,087,520.40x = 1,305,368,976,319.92
  5. Step 5: Solve for x
    x = 1,305,368,976,319.92/1,087,520.40
  6. Step 6: Final answer
    x = 1,200,316.77

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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.