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Finding the Fourth Proportional to 591.62, 891.94 and 549.86

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Solution

The fourth proportional to 591.62, 891.94 and 549.86 is: 828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.62 : 891.94 = 549.86 : x
  2. Step 2: Convert to fraction form
    591.62/891.94 = 549.86/x
  3. Step 3: Cross multiply
    591.62x = 891.94 × 549.86
  4. Step 4: Simplify right side
    591.62x = 490,439.38
  5. Step 5: Solve for x
    x = 490,439.38/591.62
  6. Step 6: Final answer
    x = 828.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.