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Finding the Fourth Proportional to 1,033.04, 1,550.11 and 485.23

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Solution

The fourth proportional to 1,033.04, 1,550.11 and 485.23 is: 728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.04 : 1,550.11 = 485.23 : x
  2. Step 2: Convert to fraction form
    1,033.04/1,550.11 = 485.23/x
  3. Step 3: Cross multiply
    1,033.04x = 1,550.11 × 485.23
  4. Step 4: Simplify right side
    1,033.04x = 752,159.88
  5. Step 5: Solve for x
    x = 752,159.88/1,033.04
  6. Step 6: Final answer
    x = 728.10

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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.