Home / 1,245,464.20-1,868,196.30-1,221,844.60

Finding the Fourth Proportional to 1,245,464.20, 1,868,196.30 and 1,221,844.60

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Solution

The fourth proportional to 1,245,464.20, 1,868,196.30 and 1,221,844.60 is: 1,832,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,464.20 : 1,868,196.30 = 1,221,844.60 : x
  2. Step 2: Convert to fraction form
    1,245,464.20/1,868,196.30 = 1,221,844.60/x
  3. Step 3: Cross multiply
    1,245,464.20x = 1,868,196.30 × 1,221,844.60
  4. Step 4: Simplify right side
    1,245,464.20x = 2,282,645,560,894.98
  5. Step 5: Solve for x
    x = 2,282,645,560,894.98/1,245,464.20
  6. Step 6: Final answer
    x = 1,832,766.90

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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.