Home / 1,115,183.64-1,673,616.72-516,564.78

Finding the Fourth Proportional to 1,115,183.64, 1,673,616.72 and 516,564.78

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Solution

The fourth proportional to 1,115,183.64, 1,673,616.72 and 516,564.78 is: 775,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,183.64 : 1,673,616.72 = 516,564.78 : x
  2. Step 2: Convert to fraction form
    1,115,183.64/1,673,616.72 = 516,564.78/x
  3. Step 3: Cross multiply
    1,115,183.64x = 1,673,616.72 × 516,564.78
  4. Step 4: Simplify right side
    1,115,183.64x = 864,531,452,771.12
  5. Step 5: Solve for x
    x = 864,531,452,771.12/1,115,183.64
  6. Step 6: Final answer
    x = 775,236.85

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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.