Home / 3,759,153.12-5,638,729.68-919,231.56

Finding the Fourth Proportional to 3,759,153.12, 5,638,729.68 and 919,231.56

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Solution

The fourth proportional to 3,759,153.12, 5,638,729.68 and 919,231.56 is: 1,378,847.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759,153.12 : 5,638,729.68 = 919,231.56 : x
  2. Step 2: Convert to fraction form
    3,759,153.12/5,638,729.68 = 919,231.56/x
  3. Step 3: Cross multiply
    3,759,153.12x = 5,638,729.68 × 919,231.56
  4. Step 4: Simplify right side
    3,759,153.12x = 5,183,298,280,164.70
  5. Step 5: Solve for x
    x = 5,183,298,280,164.70/3,759,153.12
  6. Step 6: Final answer
    x = 1,378,847.34

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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.