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Finding the Fourth Proportional to 1,033.48, 1,550.31 and 478.18

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Solution

The fourth proportional to 1,033.48, 1,550.31 and 478.18 is: 717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.48 : 1,550.31 = 478.18 : x
  2. Step 2: Convert to fraction form
    1,033.48/1,550.31 = 478.18/x
  3. Step 3: Cross multiply
    1,033.48x = 1,550.31 × 478.18
  4. Step 4: Simplify right side
    1,033.48x = 741,327.24
  5. Step 5: Solve for x
    x = 741,327.24/1,033.48
  6. Step 6: Final answer
    x = 717.31

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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.