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Finding the Fourth Proportional to 479,260.82, 661,382.15 and 264,400.80

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Solution

The fourth proportional to 479,260.82, 661,382.15 and 264,400.80 is: 364,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,260.82 : 661,382.15 = 264,400.80 : x
  2. Step 2: Convert to fraction form
    479,260.82/661,382.15 = 264,400.80/x
  3. Step 3: Cross multiply
    479,260.82x = 661,382.15 × 264,400.80
  4. Step 4: Simplify right side
    479,260.82x = 174,869,969,565.72
  5. Step 5: Solve for x
    x = 174,869,969,565.72/479,260.82
  6. Step 6: Final answer
    x = 364,874.33

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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.