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Finding the Fourth Proportional to 883.81, 1,219.92 and 552.04

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Solution

The fourth proportional to 883.81, 1,219.92 and 552.04 is: 761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.81 : 1,219.92 = 552.04 : x
  2. Step 2: Convert to fraction form
    883.81/1,219.92 = 552.04/x
  3. Step 3: Cross multiply
    883.81x = 1,219.92 × 552.04
  4. Step 4: Simplify right side
    883.81x = 673,444.64
  5. Step 5: Solve for x
    x = 673,444.64/883.81
  6. Step 6: Final answer
    x = 761.98

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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.