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Finding the Fourth Proportional to 579,969.88, 800,367.15 and 321,863.55

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Solution

The fourth proportional to 579,969.88, 800,367.15 and 321,863.55 is: 444,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,969.88 : 800,367.15 = 321,863.55 : x
  2. Step 2: Convert to fraction form
    579,969.88/800,367.15 = 321,863.55/x
  3. Step 3: Cross multiply
    579,969.88x = 800,367.15 × 321,863.55
  4. Step 4: Simplify right side
    579,969.88x = 257,609,010,593.07
  5. Step 5: Solve for x
    x = 257,609,010,593.07/579,969.88
  6. Step 6: Final answer
    x = 444,176.53

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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.