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Finding the Fourth Proportional to 654.06, 903.39 and 476.75

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Solution

The fourth proportional to 654.06, 903.39 and 476.75 is: 658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.06 : 903.39 = 476.75 : x
  2. Step 2: Convert to fraction form
    654.06/903.39 = 476.75/x
  3. Step 3: Cross multiply
    654.06x = 903.39 × 476.75
  4. Step 4: Simplify right side
    654.06x = 430,686.67
  5. Step 5: Solve for x
    x = 430,686.67/654.06
  6. Step 6: Final answer
    x = 658.48

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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.