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Finding the Fourth Proportional to 803.73, 1,108.60 and 541.29

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Solution

The fourth proportional to 803.73, 1,108.60 and 541.29 is: 746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.73 : 1,108.60 = 541.29 : x
  2. Step 2: Convert to fraction form
    803.73/1,108.60 = 541.29/x
  3. Step 3: Cross multiply
    803.73x = 1,108.60 × 541.29
  4. Step 4: Simplify right side
    803.73x = 600,074.09
  5. Step 5: Solve for x
    x = 600,074.09/803.73
  6. Step 6: Final answer
    x = 746.61

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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.