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Finding the Fourth Proportional to 792.57, 1,093.66 and 477.84

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Solution

The fourth proportional to 792.57, 1,093.66 and 477.84 is: 659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.57 : 1,093.66 = 477.84 : x
  2. Step 2: Convert to fraction form
    792.57/1,093.66 = 477.84/x
  3. Step 3: Cross multiply
    792.57x = 1,093.66 × 477.84
  4. Step 4: Simplify right side
    792.57x = 522,594.49
  5. Step 5: Solve for x
    x = 522,594.49/792.57
  6. Step 6: Final answer
    x = 659.37

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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.