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Finding the Fourth Proportional to 999.44, 1,498.08 and 382.87

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Solution

The fourth proportional to 999.44, 1,498.08 and 382.87 is: 573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.44 : 1,498.08 = 382.87 : x
  2. Step 2: Convert to fraction form
    999.44/1,498.08 = 382.87/x
  3. Step 3: Cross multiply
    999.44x = 1,498.08 × 382.87
  4. Step 4: Simplify right side
    999.44x = 573,573.20
  5. Step 5: Solve for x
    x = 573,573.20/999.44
  6. Step 6: Final answer
    x = 573.90

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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.