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Finding the Fourth Proportional to 991.23, 1,484.79 and 600

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Solution

The fourth proportional to 991.23, 1,484.79 and 600 is: 898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    991.23 : 1,484.79 = 600 : x
  2. Step 2: Convert to fraction form
    991.23/1,484.79 = 600/x
  3. Step 3: Cross multiply
    991.23x = 1,484.79 × 600
  4. Step 4: Simplify right side
    991.23x = 890,874
  5. Step 5: Solve for x
    x = 890,874/991.23
  6. Step 6: Final answer
    x = 898.76

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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.