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Finding the Fourth Proportional to 1,204.92, 1,808.22 and 555.66

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Solution

The fourth proportional to 1,204.92, 1,808.22 and 555.66 is: 833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.92 : 1,808.22 = 555.66 : x
  2. Step 2: Convert to fraction form
    1,204.92/1,808.22 = 555.66/x
  3. Step 3: Cross multiply
    1,204.92x = 1,808.22 × 555.66
  4. Step 4: Simplify right side
    1,204.92x = 1,004,755.53
  5. Step 5: Solve for x
    x = 1,004,755.53/1,204.92
  6. Step 6: Final answer
    x = 833.88

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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.