Home / 3,419,343.78-5,129,022.03-1,397,586.21

Finding the Fourth Proportional to 3,419,343.78, 5,129,022.03 and 1,397,586.21

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Solution

The fourth proportional to 3,419,343.78, 5,129,022.03 and 1,397,586.21 is: 2,096,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,343.78 : 5,129,022.03 = 1,397,586.21 : x
  2. Step 2: Convert to fraction form
    3,419,343.78/5,129,022.03 = 1,397,586.21/x
  3. Step 3: Cross multiply
    3,419,343.78x = 5,129,022.03 × 1,397,586.21
  4. Step 4: Simplify right side
    3,419,343.78x = 7,168,250,459,914.21
  5. Step 5: Solve for x
    x = 7,168,250,459,914.21/3,419,343.78
  6. Step 6: Final answer
    x = 2,096,381.91

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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.