Home / 1,279,016.12-1,765,074.34-727,701.44

Finding the Fourth Proportional to 1,279,016.12, 1,765,074.34 and 727,701.44

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Solution

The fourth proportional to 1,279,016.12, 1,765,074.34 and 727,701.44 is: 1,004,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,016.12 : 1,765,074.34 = 727,701.44 : x
  2. Step 2: Convert to fraction form
    1,279,016.12/1,765,074.34 = 727,701.44/x
  3. Step 3: Cross multiply
    1,279,016.12x = 1,765,074.34 × 727,701.44
  4. Step 4: Simplify right side
    1,279,016.12x = 1,284,447,131,009.31
  5. Step 5: Solve for x
    x = 1,284,447,131,009.31/1,279,016.12
  6. Step 6: Final answer
    x = 1,004,246.24

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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.