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Finding the Fourth Proportional to 1,013.64, 1,519.92 and 550.32

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Solution

The fourth proportional to 1,013.64, 1,519.92 and 550.32 is: 825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.64 : 1,519.92 = 550.32 : x
  2. Step 2: Convert to fraction form
    1,013.64/1,519.92 = 550.32/x
  3. Step 3: Cross multiply
    1,013.64x = 1,519.92 × 550.32
  4. Step 4: Simplify right side
    1,013.64x = 836,442.37
  5. Step 5: Solve for x
    x = 836,442.37/1,013.64
  6. Step 6: Final answer
    x = 825.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.