Home / 1,092,121.80-1,638,182.70-994,144.20

Finding the Fourth Proportional to 1,092,121.80, 1,638,182.70 and 994,144.20

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Solution

The fourth proportional to 1,092,121.80, 1,638,182.70 and 994,144.20 is: 1,491,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,121.80 : 1,638,182.70 = 994,144.20 : x
  2. Step 2: Convert to fraction form
    1,092,121.80/1,638,182.70 = 994,144.20/x
  3. Step 3: Cross multiply
    1,092,121.80x = 1,638,182.70 × 994,144.20
  4. Step 4: Simplify right side
    1,092,121.80x = 1,628,589,829,745.34
  5. Step 5: Solve for x
    x = 1,628,589,829,745.34/1,092,121.80
  6. Step 6: Final answer
    x = 1,491,216.30

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Double scale
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Similar ratio
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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.