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Finding the Fourth Proportional to 607.59, 911.79 and 444.78

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Solution

The fourth proportional to 607.59, 911.79 and 444.78 is: 667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.59 : 911.79 = 444.78 : x
  2. Step 2: Convert to fraction form
    607.59/911.79 = 444.78/x
  3. Step 3: Cross multiply
    607.59x = 911.79 × 444.78
  4. Step 4: Simplify right side
    607.59x = 405,545.96
  5. Step 5: Solve for x
    x = 405,545.96/607.59
  6. Step 6: Final answer
    x = 667.47

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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.