Home / 1,278,463.64-1,764,219.89-734,215.73

Finding the Fourth Proportional to 1,278,463.64, 1,764,219.89 and 734,215.73

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Solution

The fourth proportional to 1,278,463.64, 1,764,219.89 and 734,215.73 is: 1,013,183.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,463.64 : 1,764,219.89 = 734,215.73 : x
  2. Step 2: Convert to fraction form
    1,278,463.64/1,764,219.89 = 734,215.73/x
  3. Step 3: Cross multiply
    1,278,463.64x = 1,764,219.89 × 734,215.73
  4. Step 4: Simplify right side
    1,278,463.64x = 1,295,317,987,431.31
  5. Step 5: Solve for x
    x = 1,295,317,987,431.31/1,278,463.64
  6. Step 6: Final answer
    x = 1,013,183.29

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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.