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Finding the Fourth Proportional to 883.17, 1,217.93 and 529.03

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Solution

The fourth proportional to 883.17, 1,217.93 and 529.03 is: 729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.17 : 1,217.93 = 529.03 : x
  2. Step 2: Convert to fraction form
    883.17/1,217.93 = 529.03/x
  3. Step 3: Cross multiply
    883.17x = 1,217.93 × 529.03
  4. Step 4: Simplify right side
    883.17x = 644,320.39
  5. Step 5: Solve for x
    x = 644,320.39/883.17
  6. Step 6: Final answer
    x = 729.55

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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.