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Finding the Fourth Proportional to 550.99, 760.11 and 440.62

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Solution

The fourth proportional to 550.99, 760.11 and 440.62 is: 607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.99 : 760.11 = 440.62 : x
  2. Step 2: Convert to fraction form
    550.99/760.11 = 440.62/x
  3. Step 3: Cross multiply
    550.99x = 760.11 × 440.62
  4. Step 4: Simplify right side
    550.99x = 334,915.87
  5. Step 5: Solve for x
    x = 334,915.87/550.99
  6. Step 6: Final answer
    x = 607.85

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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.