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Finding the Fourth Proportional to 579,891, 800,251.02 and 338,339.64

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Solution

The fourth proportional to 579,891, 800,251.02 and 338,339.64 is: 466,909.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,891 : 800,251.02 = 338,339.64 : x
  2. Step 2: Convert to fraction form
    579,891/800,251.02 = 338,339.64/x
  3. Step 3: Cross multiply
    579,891x = 800,251.02 × 338,339.64
  4. Step 4: Simplify right side
    579,891x = 270,756,642,016.43
  5. Step 5: Solve for x
    x = 270,756,642,016.43/579,891
  6. Step 6: Final answer
    x = 466,909.54

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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.