Home / 579,975.12-800,364-321,891.04

Finding the Fourth Proportional to 579,975.12, 800,364 and 321,891.04

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Solution

The fourth proportional to 579,975.12, 800,364 and 321,891.04 is: 444,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,975.12 : 800,364 = 321,891.04 : x
  2. Step 2: Convert to fraction form
    579,975.12/800,364 = 321,891.04/x
  3. Step 3: Cross multiply
    579,975.12x = 800,364 × 321,891.04
  4. Step 4: Simplify right side
    579,975.12x = 257,630,000,338.56
  5. Step 5: Solve for x
    x = 257,630,000,338.56/579,975.12
  6. Step 6: Final answer
    x = 444,208.71

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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.