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Finding the Fourth Proportional to 734.36, 1,101.56 and 491.36

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Solution

The fourth proportional to 734.36, 1,101.56 and 491.36 is: 737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.36 : 1,101.56 = 491.36 : x
  2. Step 2: Convert to fraction form
    734.36/1,101.56 = 491.36/x
  3. Step 3: Cross multiply
    734.36x = 1,101.56 × 491.36
  4. Step 4: Simplify right side
    734.36x = 541,254.56
  5. Step 5: Solve for x
    x = 541,254.56/734.36
  6. Step 6: Final answer
    x = 737.05

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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.