Home / 2,196,821.80-3,297,176.70-1,297,138.60

Finding the Fourth Proportional to 2,196,821.80, 3,297,176.70 and 1,297,138.60

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Solution

The fourth proportional to 2,196,821.80, 3,297,176.70 and 1,297,138.60 is: 1,946,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196,821.80 : 3,297,176.70 = 1,297,138.60 : x
  2. Step 2: Convert to fraction form
    2,196,821.80/3,297,176.70 = 1,297,138.60/x
  3. Step 3: Cross multiply
    2,196,821.80x = 3,297,176.70 × 1,297,138.60
  4. Step 4: Simplify right side
    2,196,821.80x = 4,276,895,168,590.62
  5. Step 5: Solve for x
    x = 4,276,895,168,590.62/2,196,821.80
  6. Step 6: Final answer
    x = 1,946,855.76

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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.