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Finding the Fourth Proportional to 529.39, 792.82 and 451.93

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Solution

The fourth proportional to 529.39, 792.82 and 451.93 is: 676.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.39 : 792.82 = 451.93 : x
  2. Step 2: Convert to fraction form
    529.39/792.82 = 451.93/x
  3. Step 3: Cross multiply
    529.39x = 792.82 × 451.93
  4. Step 4: Simplify right side
    529.39x = 358,299.14
  5. Step 5: Solve for x
    x = 358,299.14/529.39
  6. Step 6: Final answer
    x = 676.82

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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.