Home / 538,934.20-743,694.78-297,218.50

Finding the Fourth Proportional to 538,934.20, 743,694.78 and 297,218.50

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Solution

The fourth proportional to 538,934.20, 743,694.78 and 297,218.50 is: 410,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,934.20 : 743,694.78 = 297,218.50 : x
  2. Step 2: Convert to fraction form
    538,934.20/743,694.78 = 297,218.50/x
  3. Step 3: Cross multiply
    538,934.20x = 743,694.78 × 297,218.50
  4. Step 4: Simplify right side
    538,934.20x = 221,039,846,969.43
  5. Step 5: Solve for x
    x = 221,039,846,969.43/538,934.20
  6. Step 6: Final answer
    x = 410,142.55

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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.