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Finding the Fourth Proportional to 1,269.33, 1,903.42 and 575.97

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Solution

The fourth proportional to 1,269.33, 1,903.42 and 575.97 is: 863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.33 : 1,903.42 = 575.97 : x
  2. Step 2: Convert to fraction form
    1,269.33/1,903.42 = 575.97/x
  3. Step 3: Cross multiply
    1,269.33x = 1,903.42 × 575.97
  4. Step 4: Simplify right side
    1,269.33x = 1,096,300.42
  5. Step 5: Solve for x
    x = 1,096,300.42/1,269.33
  6. Step 6: Final answer
    x = 863.69

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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.