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Finding the Fourth Proportional to 603.33, 905.45 and 486.48

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Solution

The fourth proportional to 603.33, 905.45 and 486.48 is: 730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.33 : 905.45 = 486.48 : x
  2. Step 2: Convert to fraction form
    603.33/905.45 = 486.48/x
  3. Step 3: Cross multiply
    603.33x = 905.45 × 486.48
  4. Step 4: Simplify right side
    603.33x = 440,484.53
  5. Step 5: Solve for x
    x = 440,484.53/603.33
  6. Step 6: Final answer
    x = 730.09

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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.