Home / 2,176,171.20-3,265,329.60-978,940.80

Finding the Fourth Proportional to 2,176,171.20, 3,265,329.60 and 978,940.80

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Solution

The fourth proportional to 2,176,171.20, 3,265,329.60 and 978,940.80 is: 1,468,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176,171.20 : 3,265,329.60 = 978,940.80 : x
  2. Step 2: Convert to fraction form
    2,176,171.20/3,265,329.60 = 978,940.80/x
  3. Step 3: Cross multiply
    2,176,171.20x = 3,265,329.60 × 978,940.80
  4. Step 4: Simplify right side
    2,176,171.20x = 3,196,564,370,887.68
  5. Step 5: Solve for x
    x = 3,196,564,370,887.68/2,176,171.20
  6. Step 6: Final answer
    x = 1,468,893.79

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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.