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Finding the Fourth Proportional to 604.68, 835.23 and 447.54

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Solution

The fourth proportional to 604.68, 835.23 and 447.54 is: 618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.68 : 835.23 = 447.54 : x
  2. Step 2: Convert to fraction form
    604.68/835.23 = 447.54/x
  3. Step 3: Cross multiply
    604.68x = 835.23 × 447.54
  4. Step 4: Simplify right side
    604.68x = 373,798.83
  5. Step 5: Solve for x
    x = 373,798.83/604.68
  6. Step 6: Final answer
    x = 618.18

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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.