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Finding the Fourth Proportional to 995.51, 1,493.48 and 630

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Solution

The fourth proportional to 995.51, 1,493.48 and 630 is: 945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.51 : 1,493.48 = 630 : x
  2. Step 2: Convert to fraction form
    995.51/1,493.48 = 630/x
  3. Step 3: Cross multiply
    995.51x = 1,493.48 × 630
  4. Step 4: Simplify right side
    995.51x = 940,893.98
  5. Step 5: Solve for x
    x = 940,893.98/995.51
  6. Step 6: Final answer
    x = 945.14

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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.