Home / 2,176,191.20-3,265,359.60-978,960.80

Finding the Fourth Proportional to 2,176,191.20, 3,265,359.60 and 978,960.80

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Solution

The fourth proportional to 2,176,191.20, 3,265,359.60 and 978,960.80 is: 1,468,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176,191.20 : 3,265,359.60 = 978,960.80 : x
  2. Step 2: Convert to fraction form
    2,176,191.20/3,265,359.60 = 978,960.80/x
  3. Step 3: Cross multiply
    2,176,191.20x = 3,265,359.60 × 978,960.80
  4. Step 4: Simplify right side
    2,176,191.20x = 3,196,659,046,303.68
  5. Step 5: Solve for x
    x = 3,196,659,046,303.68/2,176,191.20
  6. Step 6: Final answer
    x = 1,468,923.80

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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.