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Finding the Fourth Proportional to 536.76, 740.48 and 379.62

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Solution

The fourth proportional to 536.76, 740.48 and 379.62 is: 523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.76 : 740.48 = 379.62 : x
  2. Step 2: Convert to fraction form
    536.76/740.48 = 379.62/x
  3. Step 3: Cross multiply
    536.76x = 740.48 × 379.62
  4. Step 4: Simplify right side
    536.76x = 281,099.12
  5. Step 5: Solve for x
    x = 281,099.12/536.76
  6. Step 6: Final answer
    x = 523.70

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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.