Home / 2,890,396.05-3,988,991.49-1,601,640.69

Finding the Fourth Proportional to 2,890,396.05, 3,988,991.49 and 1,601,640.69

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Solution

The fourth proportional to 2,890,396.05, 3,988,991.49 and 1,601,640.69 is: 2,210,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,396.05 : 3,988,991.49 = 1,601,640.69 : x
  2. Step 2: Convert to fraction form
    2,890,396.05/3,988,991.49 = 1,601,640.69/x
  3. Step 3: Cross multiply
    2,890,396.05x = 3,988,991.49 × 1,601,640.69
  4. Step 4: Simplify right side
    2,890,396.05x = 6,388,931,082,447.73
  5. Step 5: Solve for x
    x = 6,388,931,082,447.73/2,890,396.05
  6. Step 6: Final answer
    x = 2,210,399.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.