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Finding the Fourth Proportional to 604.75, 833.91 and 457.15

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Solution

The fourth proportional to 604.75, 833.91 and 457.15 is: 630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.75 : 833.91 = 457.15 : x
  2. Step 2: Convert to fraction form
    604.75/833.91 = 457.15/x
  3. Step 3: Cross multiply
    604.75x = 833.91 × 457.15
  4. Step 4: Simplify right side
    604.75x = 381,217.79
  5. Step 5: Solve for x
    x = 381,217.79/604.75
  6. Step 6: Final answer
    x = 630.38

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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.