Home / 2,661,439.60-3,991,284.60-978,324.40

Finding the Fourth Proportional to 2,661,439.60, 3,991,284.60 and 978,324.40

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Solution

The fourth proportional to 2,661,439.60, 3,991,284.60 and 978,324.40 is: 1,467,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,439.60 : 3,991,284.60 = 978,324.40 : x
  2. Step 2: Convert to fraction form
    2,661,439.60/3,991,284.60 = 978,324.40/x
  3. Step 3: Cross multiply
    2,661,439.60x = 3,991,284.60 × 978,324.40
  4. Step 4: Simplify right side
    2,661,439.60x = 3,904,771,111,524.24
  5. Step 5: Solve for x
    x = 3,904,771,111,524.24/2,661,439.60
  6. Step 6: Final answer
    x = 1,467,165.03

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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.