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Finding the Fourth Proportional to 479,380.38, 661,525.58 and 264,517.65

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Solution

The fourth proportional to 479,380.38, 661,525.58 and 264,517.65 is: 365,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,380.38 : 661,525.58 = 264,517.65 : x
  2. Step 2: Convert to fraction form
    479,380.38/661,525.58 = 264,517.65/x
  3. Step 3: Cross multiply
    479,380.38x = 661,525.58 × 264,517.65
  4. Step 4: Simplify right side
    479,380.38x = 174,985,192,497.78
  5. Step 5: Solve for x
    x = 174,985,192,497.78/479,380.38
  6. Step 6: Final answer
    x = 365,023.69

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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.