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Finding the Fourth Proportional to 379,012.81, 568,816.37 and 264,415.39

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Solution

The fourth proportional to 379,012.81, 568,816.37 and 264,415.39 is: 396,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,012.81 : 568,816.37 = 264,415.39 : x
  2. Step 2: Convert to fraction form
    379,012.81/568,816.37 = 264,415.39/x
  3. Step 3: Cross multiply
    379,012.81x = 568,816.37 × 264,415.39
  4. Step 4: Simplify right side
    379,012.81x = 150,403,800,989.86
  5. Step 5: Solve for x
    x = 150,403,800,989.86/379,012.81
  6. Step 6: Final answer
    x = 396,830.39

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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.