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Finding the Fourth Proportional to 582.06, 871.02 and 427.62

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Solution

The fourth proportional to 582.06, 871.02 and 427.62 is: 639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.06 : 871.02 = 427.62 : x
  2. Step 2: Convert to fraction form
    582.06/871.02 = 427.62/x
  3. Step 3: Cross multiply
    582.06x = 871.02 × 427.62
  4. Step 4: Simplify right side
    582.06x = 372,465.57
  5. Step 5: Solve for x
    x = 372,465.57/582.06
  6. Step 6: Final answer
    x = 639.91

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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.