Home / 1,278,103.02-1,915,183.77-628,933.98

Finding the Fourth Proportional to 1,278,103.02, 1,915,183.77 and 628,933.98

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Solution

The fourth proportional to 1,278,103.02, 1,915,183.77 and 628,933.98 is: 942,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,103.02 : 1,915,183.77 = 628,933.98 : x
  2. Step 2: Convert to fraction form
    1,278,103.02/1,915,183.77 = 628,933.98/x
  3. Step 3: Cross multiply
    1,278,103.02x = 1,915,183.77 × 628,933.98
  4. Step 4: Simplify right side
    1,278,103.02x = 1,204,524,150,897.50
  5. Step 5: Solve for x
    x = 1,204,524,150,897.50/1,278,103.02
  6. Step 6: Final answer
    x = 942,431.19

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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.