Home / 1,295,121.80-1,942,512.60-396,653.60

Finding the Fourth Proportional to 1,295,121.80, 1,942,512.60 and 396,653.60

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Solution

The fourth proportional to 1,295,121.80, 1,942,512.60 and 396,653.60 is: 594,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,121.80 : 1,942,512.60 = 396,653.60 : x
  2. Step 2: Convert to fraction form
    1,295,121.80/1,942,512.60 = 396,653.60/x
  3. Step 3: Cross multiply
    1,295,121.80x = 1,942,512.60 × 396,653.60
  4. Step 4: Simplify right side
    1,295,121.80x = 770,504,615,835.36
  5. Step 5: Solve for x
    x = 770,504,615,835.36/1,295,121.80
  6. Step 6: Final answer
    x = 594,928.30

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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.