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Finding the Fourth Proportional to 533.59, 735.69 and 449.35

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Solution

The fourth proportional to 533.59, 735.69 and 449.35 is: 619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.59 : 735.69 = 449.35 : x
  2. Step 2: Convert to fraction form
    533.59/735.69 = 449.35/x
  3. Step 3: Cross multiply
    533.59x = 735.69 × 449.35
  4. Step 4: Simplify right side
    533.59x = 330,582.30
  5. Step 5: Solve for x
    x = 330,582.30/533.59
  6. Step 6: Final answer
    x = 619.54

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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.