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Finding the Fourth Proportional to 634.44, 946.47 and 579.96

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Solution

The fourth proportional to 634.44, 946.47 and 579.96 is: 865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.44 : 946.47 = 579.96 : x
  2. Step 2: Convert to fraction form
    634.44/946.47 = 579.96/x
  3. Step 3: Cross multiply
    634.44x = 946.47 × 579.96
  4. Step 4: Simplify right side
    634.44x = 548,914.74
  5. Step 5: Solve for x
    x = 548,914.74/634.44
  6. Step 6: Final answer
    x = 865.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.