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Finding the Fourth Proportional to 1,022.16, 1,532.42 and 444.63

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Solution

The fourth proportional to 1,022.16, 1,532.42 and 444.63 is: 666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.16 : 1,532.42 = 444.63 : x
  2. Step 2: Convert to fraction form
    1,022.16/1,532.42 = 444.63/x
  3. Step 3: Cross multiply
    1,022.16x = 1,532.42 × 444.63
  4. Step 4: Simplify right side
    1,022.16x = 681,359.90
  5. Step 5: Solve for x
    x = 681,359.90/1,022.16
  6. Step 6: Final answer
    x = 666.59

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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.