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Finding the Fourth Proportional to 1,022.53, 1,532.88 and 474.43

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Solution

The fourth proportional to 1,022.53, 1,532.88 and 474.43 is: 711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.53 : 1,532.88 = 474.43 : x
  2. Step 2: Convert to fraction form
    1,022.53/1,532.88 = 474.43/x
  3. Step 3: Cross multiply
    1,022.53x = 1,532.88 × 474.43
  4. Step 4: Simplify right side
    1,022.53x = 727,244.26
  5. Step 5: Solve for x
    x = 727,244.26/1,022.53
  6. Step 6: Final answer
    x = 711.22

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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.