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Finding the Fourth Proportional to 505.41, 754.45 and 482.94

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Solution

The fourth proportional to 505.41, 754.45 and 482.94 is: 720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.41 : 754.45 = 482.94 : x
  2. Step 2: Convert to fraction form
    505.41/754.45 = 482.94/x
  3. Step 3: Cross multiply
    505.41x = 754.45 × 482.94
  4. Step 4: Simplify right side
    505.41x = 364,354.08
  5. Step 5: Solve for x
    x = 364,354.08/505.41
  6. Step 6: Final answer
    x = 720.91

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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.