Home / 2,486,481.03-3,431,103.30-1,399,128.93

Finding the Fourth Proportional to 2,486,481.03, 3,431,103.30 and 1,399,128.93

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Solution

The fourth proportional to 2,486,481.03, 3,431,103.30 and 1,399,128.93 is: 1,930,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486,481.03 : 3,431,103.30 = 1,399,128.93 : x
  2. Step 2: Convert to fraction form
    2,486,481.03/3,431,103.30 = 1,399,128.93/x
  3. Step 3: Cross multiply
    2,486,481.03x = 3,431,103.30 × 1,399,128.93
  4. Step 4: Simplify right side
    2,486,481.03x = 4,800,555,888,848.47
  5. Step 5: Solve for x
    x = 4,800,555,888,848.47/2,486,481.03
  6. Step 6: Final answer
    x = 1,930,662.58

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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.