Home / 3,107,928.80-4,661,893.20-978,665.60

Finding the Fourth Proportional to 3,107,928.80, 4,661,893.20 and 978,665.60

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Solution

The fourth proportional to 3,107,928.80, 4,661,893.20 and 978,665.60 is: 1,467,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107,928.80 : 4,661,893.20 = 978,665.60 : x
  2. Step 2: Convert to fraction form
    3,107,928.80/4,661,893.20 = 978,665.60/x
  3. Step 3: Cross multiply
    3,107,928.80x = 4,661,893.20 × 978,665.60
  4. Step 4: Simplify right side
    3,107,928.80x = 4,562,434,505,713.92
  5. Step 5: Solve for x
    x = 4,562,434,505,713.92/3,107,928.80
  6. Step 6: Final answer
    x = 1,467,998.40

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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.