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Finding the Fourth Proportional to 995.29, 1,493.84 and 628.97

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Solution

The fourth proportional to 995.29, 1,493.84 and 628.97 is: 944.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.29 : 1,493.84 = 628.97 : x
  2. Step 2: Convert to fraction form
    995.29/1,493.84 = 628.97/x
  3. Step 3: Cross multiply
    995.29x = 1,493.84 × 628.97
  4. Step 4: Simplify right side
    995.29x = 939,574.65
  5. Step 5: Solve for x
    x = 939,574.65/995.29
  6. Step 6: Final answer
    x = 944.02

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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.