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Finding the Fourth Proportional to 1,099.30, 1,649.18 and 450.04

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Solution

The fourth proportional to 1,099.30, 1,649.18 and 450.04 is: 675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099.30 : 1,649.18 = 450.04 : x
  2. Step 2: Convert to fraction form
    1,099.30/1,649.18 = 450.04/x
  3. Step 3: Cross multiply
    1,099.30x = 1,649.18 × 450.04
  4. Step 4: Simplify right side
    1,099.30x = 742,196.97
  5. Step 5: Solve for x
    x = 742,196.97/1,099.30
  6. Step 6: Final answer
    x = 675.15

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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.