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Finding the Fourth Proportional to 611.36, 911.92 and 596.96

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Solution

The fourth proportional to 611.36, 911.92 and 596.96 is: 890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.36 : 911.92 = 596.96 : x
  2. Step 2: Convert to fraction form
    611.36/911.92 = 596.96/x
  3. Step 3: Cross multiply
    611.36x = 911.92 × 596.96
  4. Step 4: Simplify right side
    611.36x = 544,379.76
  5. Step 5: Solve for x
    x = 544,379.76/611.36
  6. Step 6: Final answer
    x = 890.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.