Home / 3,422,500.80-5,127,530.40-2,787,979.20

Finding the Fourth Proportional to 3,422,500.80, 5,127,530.40 and 2,787,979.20

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Solution

The fourth proportional to 3,422,500.80, 5,127,530.40 and 2,787,979.20 is: 4,176,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422,500.80 : 5,127,530.40 = 2,787,979.20 : x
  2. Step 2: Convert to fraction form
    3,422,500.80/5,127,530.40 = 2,787,979.20/x
  3. Step 3: Cross multiply
    3,422,500.80x = 5,127,530.40 × 2,787,979.20
  4. Step 4: Simplify right side
    3,422,500.80x = 14,295,448,102,567.68
  5. Step 5: Solve for x
    x = 14,295,448,102,567.68/3,422,500.80
  6. Step 6: Final answer
    x = 4,176,901.32

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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.