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Finding the Fourth Proportional to 508,634.80, 701,902.08 and 279,191.80

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Solution

The fourth proportional to 508,634.80, 701,902.08 and 279,191.80 is: 385,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,634.80 : 701,902.08 = 279,191.80 : x
  2. Step 2: Convert to fraction form
    508,634.80/701,902.08 = 279,191.80/x
  3. Step 3: Cross multiply
    508,634.80x = 701,902.08 × 279,191.80
  4. Step 4: Simplify right side
    508,634.80x = 195,965,305,138.94
  5. Step 5: Solve for x
    x = 195,965,305,138.94/508,634.80
  6. Step 6: Final answer
    x = 385,277.03

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1.5x scale

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.