Home / 1,069,021.80-1,474,039.22-681,318.54

Finding the Fourth Proportional to 1,069,021.80, 1,474,039.22 and 681,318.54

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Solution

The fourth proportional to 1,069,021.80, 1,474,039.22 and 681,318.54 is: 939,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,021.80 : 1,474,039.22 = 681,318.54 : x
  2. Step 2: Convert to fraction form
    1,069,021.80/1,474,039.22 = 681,318.54/x
  3. Step 3: Cross multiply
    1,069,021.80x = 1,474,039.22 × 681,318.54
  4. Step 4: Simplify right side
    1,069,021.80x = 1,004,290,245,866.55
  5. Step 5: Solve for x
    x = 1,004,290,245,866.55/1,069,021.80
  6. Step 6: Final answer
    x = 939,447.86

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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.