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Finding the Fourth Proportional to 535.97, 804.63 and 455.32

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Solution

The fourth proportional to 535.97, 804.63 and 455.32 is: 683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.97 : 804.63 = 455.32 : x
  2. Step 2: Convert to fraction form
    535.97/804.63 = 455.32/x
  3. Step 3: Cross multiply
    535.97x = 804.63 × 455.32
  4. Step 4: Simplify right side
    535.97x = 366,366.84
  5. Step 5: Solve for x
    x = 366,366.84/535.97
  6. Step 6: Final answer
    x = 683.56

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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.