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Finding the Fourth Proportional to 508,581.27, 701,843.02 and 279,140.06

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Solution

The fourth proportional to 508,581.27, 701,843.02 and 279,140.06 is: 385,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,581.27 : 701,843.02 = 279,140.06 : x
  2. Step 2: Convert to fraction form
    508,581.27/701,843.02 = 279,140.06/x
  3. Step 3: Cross multiply
    508,581.27x = 701,843.02 × 279,140.06
  4. Step 4: Simplify right side
    508,581.27x = 195,912,503,770.14
  5. Step 5: Solve for x
    x = 195,912,503,770.14/508,581.27
  6. Step 6: Final answer
    x = 385,213.76

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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.