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Finding the Fourth Proportional to 607.72, 908.79 and 451.84

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Solution

The fourth proportional to 607.72, 908.79 and 451.84 is: 675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.72 : 908.79 = 451.84 : x
  2. Step 2: Convert to fraction form
    607.72/908.79 = 451.84/x
  3. Step 3: Cross multiply
    607.72x = 908.79 × 451.84
  4. Step 4: Simplify right side
    607.72x = 410,627.67
  5. Step 5: Solve for x
    x = 410,627.67/607.72
  6. Step 6: Final answer
    x = 675.69

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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.