Home / 1,642,745.78-2,458,123.80-969,149.78

Finding the Fourth Proportional to 1,642,745.78, 2,458,123.80 and 969,149.78

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Solution

The fourth proportional to 1,642,745.78, 2,458,123.80 and 969,149.78 is: 1,450,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,745.78 : 2,458,123.80 = 969,149.78 : x
  2. Step 2: Convert to fraction form
    1,642,745.78/2,458,123.80 = 969,149.78/x
  3. Step 3: Cross multiply
    1,642,745.78x = 2,458,123.80 × 969,149.78
  4. Step 4: Simplify right side
    1,642,745.78x = 2,382,290,139,982.76
  5. Step 5: Solve for x
    x = 2,382,290,139,982.76/1,642,745.78
  6. Step 6: Final answer
    x = 1,450,187.95

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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.