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Finding the Fourth Proportional to 574.18, 792.24 and 486.02

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Solution

The fourth proportional to 574.18, 792.24 and 486.02 is: 670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.18 : 792.24 = 486.02 : x
  2. Step 2: Convert to fraction form
    574.18/792.24 = 486.02/x
  3. Step 3: Cross multiply
    574.18x = 792.24 × 486.02
  4. Step 4: Simplify right side
    574.18x = 385,044.48
  5. Step 5: Solve for x
    x = 385,044.48/574.18
  6. Step 6: Final answer
    x = 670.60

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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.