Home / 2,661,441.60-3,991,287.60-978,326.40

Finding the Fourth Proportional to 2,661,441.60, 3,991,287.60 and 978,326.40

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Solution

The fourth proportional to 2,661,441.60, 3,991,287.60 and 978,326.40 is: 1,467,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,441.60 : 3,991,287.60 = 978,326.40 : x
  2. Step 2: Convert to fraction form
    2,661,441.60/3,991,287.60 = 978,326.40/x
  3. Step 3: Cross multiply
    2,661,441.60x = 3,991,287.60 × 978,326.40
  4. Step 4: Simplify right side
    2,661,441.60x = 3,904,782,029,072.64
  5. Step 5: Solve for x
    x = 3,904,782,029,072.64/2,661,441.60
  6. Step 6: Final answer
    x = 1,467,168.03

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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.