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Finding the Fourth Proportional to 732.84, 1,099.26 and 618.36

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Solution

The fourth proportional to 732.84, 1,099.26 and 618.36 is: 927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.84 : 1,099.26 = 618.36 : x
  2. Step 2: Convert to fraction form
    732.84/1,099.26 = 618.36/x
  3. Step 3: Cross multiply
    732.84x = 1,099.26 × 618.36
  4. Step 4: Simplify right side
    732.84x = 679,738.41
  5. Step 5: Solve for x
    x = 679,738.41/732.84
  6. Step 6: Final answer
    x = 927.54

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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.