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Finding the Fourth Proportional to 479,471.50, 661,651.34 and 264,608.78

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Solution

The fourth proportional to 479,471.50, 661,651.34 and 264,608.78 is: 365,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,471.50 : 661,651.34 = 264,608.78 : x
  2. Step 2: Convert to fraction form
    479,471.50/661,651.34 = 264,608.78/x
  3. Step 3: Cross multiply
    479,471.50x = 661,651.34 × 264,608.78
  4. Step 4: Simplify right side
    479,471.50x = 175,078,749,231.47
  5. Step 5: Solve for x
    x = 175,078,749,231.47/479,471.50
  6. Step 6: Final answer
    x = 365,149.44

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1.5x scale

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.