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Finding the Fourth Proportional to 737.62, 1,017.84 and 489.22

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Solution

The fourth proportional to 737.62, 1,017.84 and 489.22 is: 675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.62 : 1,017.84 = 489.22 : x
  2. Step 2: Convert to fraction form
    737.62/1,017.84 = 489.22/x
  3. Step 3: Cross multiply
    737.62x = 1,017.84 × 489.22
  4. Step 4: Simplify right side
    737.62x = 497,947.68
  5. Step 5: Solve for x
    x = 497,947.68/737.62
  6. Step 6: Final answer
    x = 675.07

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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.