Home / 1,336,778.40-2,005,167.60-978,055.73

Finding the Fourth Proportional to 1,336,778.40, 2,005,167.60 and 978,055.73

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Solution

The fourth proportional to 1,336,778.40, 2,005,167.60 and 978,055.73 is: 1,467,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,778.40 : 2,005,167.60 = 978,055.73 : x
  2. Step 2: Convert to fraction form
    1,336,778.40/2,005,167.60 = 978,055.73/x
  3. Step 3: Cross multiply
    1,336,778.40x = 2,005,167.60 × 978,055.73
  4. Step 4: Simplify right side
    1,336,778.40x = 1,961,165,660,790.35
  5. Step 5: Solve for x
    x = 1,961,165,660,790.35/1,336,778.40
  6. Step 6: Final answer
    x = 1,467,083.60

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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.