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Finding the Fourth Proportional to 1,204.85, 1,662.57 and 700.56

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Solution

The fourth proportional to 1,204.85, 1,662.57 and 700.56 is: 966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.85 : 1,662.57 = 700.56 : x
  2. Step 2: Convert to fraction form
    1,204.85/1,662.57 = 700.56/x
  3. Step 3: Cross multiply
    1,204.85x = 1,662.57 × 700.56
  4. Step 4: Simplify right side
    1,204.85x = 1,164,730.04
  5. Step 5: Solve for x
    x = 1,164,730.04/1,204.85
  6. Step 6: Final answer
    x = 966.71

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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.