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Finding the Fourth Proportional to 574.88, 792.92 and 555.84

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Solution

The fourth proportional to 574.88, 792.92 and 555.84 is: 766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.88 : 792.92 = 555.84 : x
  2. Step 2: Convert to fraction form
    574.88/792.92 = 555.84/x
  3. Step 3: Cross multiply
    574.88x = 792.92 × 555.84
  4. Step 4: Simplify right side
    574.88x = 440,736.65
  5. Step 5: Solve for x
    x = 440,736.65/574.88
  6. Step 6: Final answer
    x = 766.66

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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.