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Finding the Fourth Proportional to 379,684.48, 523,958.16 and 270,988.96

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Solution

The fourth proportional to 379,684.48, 523,958.16 and 270,988.96 is: 373,960.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,684.48 : 523,958.16 = 270,988.96 : x
  2. Step 2: Convert to fraction form
    379,684.48/523,958.16 = 270,988.96/x
  3. Step 3: Cross multiply
    379,684.48x = 523,958.16 × 270,988.96
  4. Step 4: Simplify right side
    379,684.48x = 141,986,876,861.91
  5. Step 5: Solve for x
    x = 141,986,876,861.91/379,684.48
  6. Step 6: Final answer
    x = 373,960.18

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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.