Home / 1,815,081.89-2,504,717.92-999,126.20

Finding the Fourth Proportional to 1,815,081.89, 2,504,717.92 and 999,126.20

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Solution

The fourth proportional to 1,815,081.89, 2,504,717.92 and 999,126.20 is: 1,378,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,081.89 : 2,504,717.92 = 999,126.20 : x
  2. Step 2: Convert to fraction form
    1,815,081.89/2,504,717.92 = 999,126.20/x
  3. Step 3: Cross multiply
    1,815,081.89x = 2,504,717.92 × 999,126.20
  4. Step 4: Simplify right side
    1,815,081.89x = 2,502,529,297,481.50
  5. Step 5: Solve for x
    x = 2,502,529,297,481.50/1,815,081.89
  6. Step 6: Final answer
    x = 1,378,741.81

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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.