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Finding the Fourth Proportional to 798.50, 1,195.71 and 724.52

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Solution

The fourth proportional to 798.50, 1,195.71 and 724.52 is: 1,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.50 : 1,195.71 = 724.52 : x
  2. Step 2: Convert to fraction form
    798.50/1,195.71 = 724.52/x
  3. Step 3: Cross multiply
    798.50x = 1,195.71 × 724.52
  4. Step 4: Simplify right side
    798.50x = 866,315.81
  5. Step 5: Solve for x
    x = 866,315.81/798.50
  6. Step 6: Final answer
    x = 1,084.93

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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.