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Finding the Fourth Proportional to 604.46, 835.83 and 479.90

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Solution

The fourth proportional to 604.46, 835.83 and 479.90 is: 663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.46 : 835.83 = 479.90 : x
  2. Step 2: Convert to fraction form
    604.46/835.83 = 479.90/x
  3. Step 3: Cross multiply
    604.46x = 835.83 × 479.90
  4. Step 4: Simplify right side
    604.46x = 401,118.11
  5. Step 5: Solve for x
    x = 401,118.11/604.46
  6. Step 6: Final answer
    x = 663.60

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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.