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Finding the Fourth Proportional to 1,036.05, 1,553.20 and 450.61

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Solution

The fourth proportional to 1,036.05, 1,553.20 and 450.61 is: 675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.05 : 1,553.20 = 450.61 : x
  2. Step 2: Convert to fraction form
    1,036.05/1,553.20 = 450.61/x
  3. Step 3: Cross multiply
    1,036.05x = 1,553.20 × 450.61
  4. Step 4: Simplify right side
    1,036.05x = 699,887.45
  5. Step 5: Solve for x
    x = 699,887.45/1,036.05
  6. Step 6: Final answer
    x = 675.53

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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.