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Finding the Fourth Proportional to 579,950, 800,329.36 and 321,865.92

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Solution

The fourth proportional to 579,950, 800,329.36 and 321,865.92 is: 444,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,950 : 800,329.36 = 321,865.92 : x
  2. Step 2: Convert to fraction form
    579,950/800,329.36 = 321,865.92/x
  3. Step 3: Cross multiply
    579,950x = 800,329.36 × 321,865.92
  4. Step 4: Simplify right side
    579,950x = 257,598,745,759.41
  5. Step 5: Solve for x
    x = 257,598,745,759.41/579,950
  6. Step 6: Final answer
    x = 444,174.06

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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.