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Finding the Fourth Proportional to 995.43, 1,492.08 and 630.33

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Solution

The fourth proportional to 995.43, 1,492.08 and 630.33 is: 944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.43 : 1,492.08 = 630.33 : x
  2. Step 2: Convert to fraction form
    995.43/1,492.08 = 630.33/x
  3. Step 3: Cross multiply
    995.43x = 1,492.08 × 630.33
  4. Step 4: Simplify right side
    995.43x = 940,502.79
  5. Step 5: Solve for x
    x = 940,502.79/995.43
  6. Step 6: Final answer
    x = 944.82

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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.