Home / 1,099.24-1,646.70-550.60

Finding the Fourth Proportional to 1,099.24, 1,646.70 and 550.60

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Solution

The fourth proportional to 1,099.24, 1,646.70 and 550.60 is: 824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099.24 : 1,646.70 = 550.60 : x
  2. Step 2: Convert to fraction form
    1,099.24/1,646.70 = 550.60/x
  3. Step 3: Cross multiply
    1,099.24x = 1,646.70 × 550.60
  4. Step 4: Simplify right side
    1,099.24x = 906,673.02
  5. Step 5: Solve for x
    x = 906,673.02/1,099.24
  6. Step 6: Final answer
    x = 824.82

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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.