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Finding the Fourth Proportional to 737.96, 1,018.38 and 443.23

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Solution

The fourth proportional to 737.96, 1,018.38 and 443.23 is: 611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.96 : 1,018.38 = 443.23 : x
  2. Step 2: Convert to fraction form
    737.96/1,018.38 = 443.23/x
  3. Step 3: Cross multiply
    737.96x = 1,018.38 × 443.23
  4. Step 4: Simplify right side
    737.96x = 451,373.19
  5. Step 5: Solve for x
    x = 451,373.19/737.96
  6. Step 6: Final answer
    x = 611.65

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1.5x scale

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.