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Finding the Fourth Proportional to 1,012.33, 1,517.27 and 573.38

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Solution

The fourth proportional to 1,012.33, 1,517.27 and 573.38 is: 859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012.33 : 1,517.27 = 573.38 : x
  2. Step 2: Convert to fraction form
    1,012.33/1,517.27 = 573.38/x
  3. Step 3: Cross multiply
    1,012.33x = 1,517.27 × 573.38
  4. Step 4: Simplify right side
    1,012.33x = 869,967.51
  5. Step 5: Solve for x
    x = 869,967.51/1,012.33
  6. Step 6: Final answer
    x = 859.37

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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.