Home / 1,311,139.36-1,809,406.38-738,200.44

Finding the Fourth Proportional to 1,311,139.36, 1,809,406.38 and 738,200.44

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Solution

The fourth proportional to 1,311,139.36, 1,809,406.38 and 738,200.44 is: 1,018,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,139.36 : 1,809,406.38 = 738,200.44 : x
  2. Step 2: Convert to fraction form
    1,311,139.36/1,809,406.38 = 738,200.44/x
  3. Step 3: Cross multiply
    1,311,139.36x = 1,809,406.38 × 738,200.44
  4. Step 4: Simplify right side
    1,311,139.36x = 1,335,704,585,854.81
  5. Step 5: Solve for x
    x = 1,335,704,585,854.81/1,311,139.36
  6. Step 6: Final answer
    x = 1,018,735.79

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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.