Home / 1,815,375.09-2,505,279.74-999,635.03

Finding the Fourth Proportional to 1,815,375.09, 2,505,279.74 and 999,635.03

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Solution

The fourth proportional to 1,815,375.09, 2,505,279.74 and 999,635.03 is: 1,379,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,375.09 : 2,505,279.74 = 999,635.03 : x
  2. Step 2: Convert to fraction form
    1,815,375.09/2,505,279.74 = 999,635.03/x
  3. Step 3: Cross multiply
    1,815,375.09x = 2,505,279.74 × 999,635.03
  4. Step 4: Simplify right side
    1,815,375.09x = 2,504,365,370,528.72
  5. Step 5: Solve for x
    x = 2,504,365,370,528.72/1,815,375.09
  6. Step 6: Final answer
    x = 1,379,530.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.