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Finding the Fourth Proportional to 805.55, 1,201.53 and 734.81

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Solution

The fourth proportional to 805.55, 1,201.53 and 734.81 is: 1,096.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.55 : 1,201.53 = 734.81 : x
  2. Step 2: Convert to fraction form
    805.55/1,201.53 = 734.81/x
  3. Step 3: Cross multiply
    805.55x = 1,201.53 × 734.81
  4. Step 4: Simplify right side
    805.55x = 882,896.26
  5. Step 5: Solve for x
    x = 882,896.26/805.55
  6. Step 6: Final answer
    x = 1,096.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.