Home / 1,678,977.20-2,517,093.48-780,978.80

Finding the Fourth Proportional to 1,678,977.20, 2,517,093.48 and 780,978.80

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Solution

The fourth proportional to 1,678,977.20, 2,517,093.48 and 780,978.80 is: 1,170,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,977.20 : 2,517,093.48 = 780,978.80 : x
  2. Step 2: Convert to fraction form
    1,678,977.20/2,517,093.48 = 780,978.80/x
  3. Step 3: Cross multiply
    1,678,977.20x = 2,517,093.48 × 780,978.80
  4. Step 4: Simplify right side
    1,678,977.20x = 1,965,796,645,498.22
  5. Step 5: Solve for x
    x = 1,965,796,645,498.22/1,678,977.20
  6. Step 6: Final answer
    x = 1,170,829.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.