Home / 1,279,121.76-1,765,188-706,163.04

Finding the Fourth Proportional to 1,279,121.76, 1,765,188 and 706,163.04

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Solution

The fourth proportional to 1,279,121.76, 1,765,188 and 706,163.04 is: 974,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,121.76 : 1,765,188 = 706,163.04 : x
  2. Step 2: Convert to fraction form
    1,279,121.76/1,765,188 = 706,163.04/x
  3. Step 3: Cross multiply
    1,279,121.76x = 1,765,188 × 706,163.04
  4. Step 4: Simplify right side
    1,279,121.76x = 1,246,510,524,251.52
  5. Step 5: Solve for x
    x = 1,246,510,524,251.52/1,279,121.76
  6. Step 6: Final answer
    x = 974,504.98

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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.