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Finding the Fourth Proportional to 603.66, 906.27 and 486.60

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Solution

The fourth proportional to 603.66, 906.27 and 486.60 is: 730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.66 : 906.27 = 486.60 : x
  2. Step 2: Convert to fraction form
    603.66/906.27 = 486.60/x
  3. Step 3: Cross multiply
    603.66x = 906.27 × 486.60
  4. Step 4: Simplify right side
    603.66x = 440,990.98
  5. Step 5: Solve for x
    x = 440,990.98/603.66
  6. Step 6: Final answer
    x = 730.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.