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Finding the Fourth Proportional to 479,191.89, 661,286.66 and 264,328.86

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Solution

The fourth proportional to 479,191.89, 661,286.66 and 264,328.86 is: 364,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,191.89 : 661,286.66 = 264,328.86 : x
  2. Step 2: Convert to fraction form
    479,191.89/661,286.66 = 264,328.86/x
  3. Step 3: Cross multiply
    479,191.89x = 661,286.66 × 264,328.86
  4. Step 4: Simplify right side
    479,191.89x = 174,797,147,649.36
  5. Step 5: Solve for x
    x = 174,797,147,649.36/479,191.89
  6. Step 6: Final answer
    x = 364,774.85

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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.