Home / 854,634.12-1,281,047.22-321,924.66

Finding the Fourth Proportional to 854,634.12, 1,281,047.22 and 321,924.66

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Solution

The fourth proportional to 854,634.12, 1,281,047.22 and 321,924.66 is: 482,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,634.12 : 1,281,047.22 = 321,924.66 : x
  2. Step 2: Convert to fraction form
    854,634.12/1,281,047.22 = 321,924.66/x
  3. Step 3: Cross multiply
    854,634.12x = 1,281,047.22 × 321,924.66
  4. Step 4: Simplify right side
    854,634.12x = 412,400,690,742.45
  5. Step 5: Solve for x
    x = 412,400,690,742.45/854,634.12
  6. Step 6: Final answer
    x = 482,546.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.