Home / 1,248,999.87-1,874,247.24-1,147,361.78

Finding the Fourth Proportional to 1,248,999.87, 1,874,247.24 and 1,147,361.78

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Solution

The fourth proportional to 1,248,999.87, 1,874,247.24 and 1,147,361.78 is: 1,721,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,999.87 : 1,874,247.24 = 1,147,361.78 : x
  2. Step 2: Convert to fraction form
    1,248,999.87/1,874,247.24 = 1,147,361.78/x
  3. Step 3: Cross multiply
    1,248,999.87x = 1,874,247.24 × 1,147,361.78
  4. Step 4: Simplify right side
    1,248,999.87x = 2,150,439,649,446.49
  5. Step 5: Solve for x
    x = 2,150,439,649,446.49/1,248,999.87
  6. Step 6: Final answer
    x = 1,721,729.28

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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.