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Finding the Fourth Proportional to 902.47, 1,244.91 and 529.33

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Solution

The fourth proportional to 902.47, 1,244.91 and 529.33 is: 730.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.47 : 1,244.91 = 529.33 : x
  2. Step 2: Convert to fraction form
    902.47/1,244.91 = 529.33/x
  3. Step 3: Cross multiply
    902.47x = 1,244.91 × 529.33
  4. Step 4: Simplify right side
    902.47x = 658,968.21
  5. Step 5: Solve for x
    x = 658,968.21/902.47
  6. Step 6: Final answer
    x = 730.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.