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Finding the Fourth Proportional to 575.92, 794.78 and 354.82

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Solution

The fourth proportional to 575.92, 794.78 and 354.82 is: 489.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.92 : 794.78 = 354.82 : x
  2. Step 2: Convert to fraction form
    575.92/794.78 = 354.82/x
  3. Step 3: Cross multiply
    575.92x = 794.78 × 354.82
  4. Step 4: Simplify right side
    575.92x = 282,003.84
  5. Step 5: Solve for x
    x = 282,003.84/575.92
  6. Step 6: Final answer
    x = 489.66

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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.