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Finding the Fourth Proportional to 548.68, 756.72 and 463.93

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Solution

The fourth proportional to 548.68, 756.72 and 463.93 is: 639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.68 : 756.72 = 463.93 : x
  2. Step 2: Convert to fraction form
    548.68/756.72 = 463.93/x
  3. Step 3: Cross multiply
    548.68x = 756.72 × 463.93
  4. Step 4: Simplify right side
    548.68x = 351,065.11
  5. Step 5: Solve for x
    x = 351,065.11/548.68
  6. Step 6: Final answer
    x = 639.84

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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.