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Finding the Fourth Proportional to 479,450.15, 661,889.97 and 350,243.54

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Solution

The fourth proportional to 479,450.15, 661,889.97 and 350,243.54 is: 483,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,450.15 : 661,889.97 = 350,243.54 : x
  2. Step 2: Convert to fraction form
    479,450.15/661,889.97 = 350,243.54/x
  3. Step 3: Cross multiply
    479,450.15x = 661,889.97 × 350,243.54
  4. Step 4: Simplify right side
    479,450.15x = 231,822,686,183.29
  5. Step 5: Solve for x
    x = 231,822,686,183.29/479,450.15
  6. Step 6: Final answer
    x = 483,517.81

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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.