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Finding the Fourth Proportional to 654.66, 903.79 and 504.96

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Solution

The fourth proportional to 654.66, 903.79 and 504.96 is: 697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.66 : 903.79 = 504.96 : x
  2. Step 2: Convert to fraction form
    654.66/903.79 = 504.96/x
  3. Step 3: Cross multiply
    654.66x = 903.79 × 504.96
  4. Step 4: Simplify right side
    654.66x = 456,375.27
  5. Step 5: Solve for x
    x = 456,375.27/654.66
  6. Step 6: Final answer
    x = 697.12

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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.