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Finding the Fourth Proportional to 995.10, 1,372.89 and 601.98

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Solution

The fourth proportional to 995.10, 1,372.89 and 601.98 is: 830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.10 : 1,372.89 = 601.98 : x
  2. Step 2: Convert to fraction form
    995.10/1,372.89 = 601.98/x
  3. Step 3: Cross multiply
    995.10x = 1,372.89 × 601.98
  4. Step 4: Simplify right side
    995.10x = 826,452.32
  5. Step 5: Solve for x
    x = 826,452.32/995.10
  6. Step 6: Final answer
    x = 830.52

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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.