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Finding the Fourth Proportional to 792.30, 1,093.53 and 460.72

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Solution

The fourth proportional to 792.30, 1,093.53 and 460.72 is: 635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.30 : 1,093.53 = 460.72 : x
  2. Step 2: Convert to fraction form
    792.30/1,093.53 = 460.72/x
  3. Step 3: Cross multiply
    792.30x = 1,093.53 × 460.72
  4. Step 4: Simplify right side
    792.30x = 503,814.24
  5. Step 5: Solve for x
    x = 503,814.24/792.30
  6. Step 6: Final answer
    x = 635.89

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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.