Home / 1,311,049.44-1,809,243-738,090.72

Finding the Fourth Proportional to 1,311,049.44, 1,809,243 and 738,090.72

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Solution

The fourth proportional to 1,311,049.44, 1,809,243 and 738,090.72 is: 1,018,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,049.44 : 1,809,243 = 738,090.72 : x
  2. Step 2: Convert to fraction form
    1,311,049.44/1,809,243 = 738,090.72/x
  3. Step 3: Cross multiply
    1,311,049.44x = 1,809,243 × 738,090.72
  4. Step 4: Simplify right side
    1,311,049.44x = 1,335,385,468,524.96
  5. Step 5: Solve for x
    x = 1,335,385,468,524.96/1,311,049.44
  6. Step 6: Final answer
    x = 1,018,562.25

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1.5x scale

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.