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Finding the Fourth Proportional to 792.30, 1,093.38 and 460.77

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Solution

The fourth proportional to 792.30, 1,093.38 and 460.77 is: 635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.30 : 1,093.38 = 460.77 : x
  2. Step 2: Convert to fraction form
    792.30/1,093.38 = 460.77/x
  3. Step 3: Cross multiply
    792.30x = 1,093.38 × 460.77
  4. Step 4: Simplify right side
    792.30x = 503,796.70
  5. Step 5: Solve for x
    x = 503,796.70/792.30
  6. Step 6: Final answer
    x = 635.87

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1.5x scale

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.