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Finding the Fourth Proportional to 479,554.63, 661,781.79 and 264,694.64

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Solution

The fourth proportional to 479,554.63, 661,781.79 and 264,694.64 is: 365,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,554.63 : 661,781.79 = 264,694.64 : x
  2. Step 2: Convert to fraction form
    479,554.63/661,781.79 = 264,694.64/x
  3. Step 3: Cross multiply
    479,554.63x = 661,781.79 × 264,694.64
  4. Step 4: Simplify right side
    479,554.63x = 175,170,089,353.70
  5. Step 5: Solve for x
    x = 175,170,089,353.70/479,554.63
  6. Step 6: Final answer
    x = 365,276.61

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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.