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Finding the Fourth Proportional to 579.41, 798.88 and 402.52

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Solution

The fourth proportional to 579.41, 798.88 and 402.52 is: 554.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.41 : 798.88 = 402.52 : x
  2. Step 2: Convert to fraction form
    579.41/798.88 = 402.52/x
  3. Step 3: Cross multiply
    579.41x = 798.88 × 402.52
  4. Step 4: Simplify right side
    579.41x = 321,565.18
  5. Step 5: Solve for x
    x = 321,565.18/579.41
  6. Step 6: Final answer
    x = 554.99

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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.