Home / 1,279,019.12-1,765,078.48-727,704.44

Finding the Fourth Proportional to 1,279,019.12, 1,765,078.48 and 727,704.44

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Solution

The fourth proportional to 1,279,019.12, 1,765,078.48 and 727,704.44 is: 1,004,250.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,019.12 : 1,765,078.48 = 727,704.44 : x
  2. Step 2: Convert to fraction form
    1,279,019.12/1,765,078.48 = 727,704.44/x
  3. Step 3: Cross multiply
    1,279,019.12x = 1,765,078.48 × 727,704.44
  4. Step 4: Simplify right side
    1,279,019.12x = 1,284,455,446,844.45
  5. Step 5: Solve for x
    x = 1,284,455,446,844.45/1,279,019.12
  6. Step 6: Final answer
    x = 1,004,250.39

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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.