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Finding the Fourth Proportional to 579.08, 867.39 and 463.64

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Solution

The fourth proportional to 579.08, 867.39 and 463.64 is: 694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.08 : 867.39 = 463.64 : x
  2. Step 2: Convert to fraction form
    579.08/867.39 = 463.64/x
  3. Step 3: Cross multiply
    579.08x = 867.39 × 463.64
  4. Step 4: Simplify right side
    579.08x = 402,156.70
  5. Step 5: Solve for x
    x = 402,156.70/579.08
  6. Step 6: Final answer
    x = 694.48

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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.