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Finding the Fourth Proportional to 479,620.60, 661,876.56 and 264,760.80

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Solution

The fourth proportional to 479,620.60, 661,876.56 and 264,760.80 is: 365,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,620.60 : 661,876.56 = 264,760.80 : x
  2. Step 2: Convert to fraction form
    479,620.60/661,876.56 = 264,760.80/x
  3. Step 3: Cross multiply
    479,620.60x = 661,876.56 × 264,760.80
  4. Step 4: Simplify right side
    479,620.60x = 175,238,967,526.85
  5. Step 5: Solve for x
    x = 175,238,967,526.85/479,620.60
  6. Step 6: Final answer
    x = 365,369.98

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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.