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Finding the Fourth Proportional to 479,704.58, 661,994.27 and 261,913.94

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Solution

The fourth proportional to 479,704.58, 661,994.27 and 261,913.94 is: 361,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,704.58 : 661,994.27 = 261,913.94 : x
  2. Step 2: Convert to fraction form
    479,704.58/661,994.27 = 261,913.94/x
  3. Step 3: Cross multiply
    479,704.58x = 661,994.27 × 261,913.94
  4. Step 4: Simplify right side
    479,704.58x = 173,385,522,893.58
  5. Step 5: Solve for x
    x = 173,385,522,893.58/479,704.58
  6. Step 6: Final answer
    x = 361,442.30

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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.