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Finding the Fourth Proportional to 1,046.50, 1,446.90 and 1,000.60

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Solution

The fourth proportional to 1,046.50, 1,446.90 and 1,000.60 is: 1,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.50 : 1,446.90 = 1,000.60 : x
  2. Step 2: Convert to fraction form
    1,046.50/1,446.90 = 1,000.60/x
  3. Step 3: Cross multiply
    1,046.50x = 1,446.90 × 1,000.60
  4. Step 4: Simplify right side
    1,046.50x = 1,447,768.14
  5. Step 5: Solve for x
    x = 1,447,768.14/1,046.50
  6. Step 6: Final answer
    x = 1,383.44

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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.