Home / 854,540.82-1,280,120.49-694,795.05

Finding the Fourth Proportional to 854,540.82, 1,280,120.49 and 694,795.05

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Solution

The fourth proportional to 854,540.82, 1,280,120.49 and 694,795.05 is: 1,040,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,540.82 : 1,280,120.49 = 694,795.05 : x
  2. Step 2: Convert to fraction form
    854,540.82/1,280,120.49 = 694,795.05/x
  3. Step 3: Cross multiply
    854,540.82x = 1,280,120.49 × 694,795.05
  4. Step 4: Simplify right side
    854,540.82x = 889,421,379,855.58
  5. Step 5: Solve for x
    x = 889,421,379,855.58/854,540.82
  6. Step 6: Final answer
    x = 1,040,817.90

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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.