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Finding the Fourth Proportional to 666.96, 998.51 and 596.61

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Solution

The fourth proportional to 666.96, 998.51 and 596.61 is: 893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.96 : 998.51 = 596.61 : x
  2. Step 2: Convert to fraction form
    666.96/998.51 = 596.61/x
  3. Step 3: Cross multiply
    666.96x = 998.51 × 596.61
  4. Step 4: Simplify right side
    666.96x = 595,718.07
  5. Step 5: Solve for x
    x = 595,718.07/666.96
  6. Step 6: Final answer
    x = 893.18

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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.