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Finding the Fourth Proportional to 548.79, 756.72 and 460.50

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Solution

The fourth proportional to 548.79, 756.72 and 460.50 is: 634.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.79 : 756.72 = 460.50 : x
  2. Step 2: Convert to fraction form
    548.79/756.72 = 460.50/x
  3. Step 3: Cross multiply
    548.79x = 756.72 × 460.50
  4. Step 4: Simplify right side
    548.79x = 348,469.56
  5. Step 5: Solve for x
    x = 348,469.56/548.79
  6. Step 6: Final answer
    x = 634.98

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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.