Home / 1,400,540.80-2,100,811.20-922,243.90

Finding the Fourth Proportional to 1,400,540.80, 2,100,811.20 and 922,243.90

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Solution

The fourth proportional to 1,400,540.80, 2,100,811.20 and 922,243.90 is: 1,383,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,540.80 : 2,100,811.20 = 922,243.90 : x
  2. Step 2: Convert to fraction form
    1,400,540.80/2,100,811.20 = 922,243.90/x
  3. Step 3: Cross multiply
    1,400,540.80x = 2,100,811.20 × 922,243.90
  4. Step 4: Simplify right side
    1,400,540.80x = 1,937,460,314,251.68
  5. Step 5: Solve for x
    x = 1,937,460,314,251.68/1,400,540.80
  6. Step 6: Final answer
    x = 1,383,365.85

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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.