Home / 1,311,048.44-1,809,241.62-738,089.72

Finding the Fourth Proportional to 1,311,048.44, 1,809,241.62 and 738,089.72

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Solution

The fourth proportional to 1,311,048.44, 1,809,241.62 and 738,089.72 is: 1,018,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,048.44 : 1,809,241.62 = 738,089.72 : x
  2. Step 2: Convert to fraction form
    1,311,048.44/1,809,241.62 = 738,089.72/x
  3. Step 3: Cross multiply
    1,311,048.44x = 1,809,241.62 × 738,089.72
  4. Step 4: Simplify right side
    1,311,048.44x = 1,335,382,640,718.15
  5. Step 5: Solve for x
    x = 1,335,382,640,718.15/1,311,048.44
  6. Step 6: Final answer
    x = 1,018,560.87

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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.