Home / 1,086,415.20-1,628,974.80-665,992.80

Finding the Fourth Proportional to 1,086,415.20, 1,628,974.80 and 665,992.80

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Solution

The fourth proportional to 1,086,415.20, 1,628,974.80 and 665,992.80 is: 998,591.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,415.20 : 1,628,974.80 = 665,992.80 : x
  2. Step 2: Convert to fraction form
    1,086,415.20/1,628,974.80 = 665,992.80/x
  3. Step 3: Cross multiply
    1,086,415.20x = 1,628,974.80 × 665,992.80
  4. Step 4: Simplify right side
    1,086,415.20x = 1,084,885,488,181.44
  5. Step 5: Solve for x
    x = 1,084,885,488,181.44/1,086,415.20
  6. Step 6: Final answer
    x = 998,591.96

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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.