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Finding the Fourth Proportional to 538,910.94, 743,687.28 and 297,215.94

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Solution

The fourth proportional to 538,910.94, 743,687.28 and 297,215.94 is: 410,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,910.94 : 743,687.28 = 297,215.94 : x
  2. Step 2: Convert to fraction form
    538,910.94/743,687.28 = 297,215.94/x
  3. Step 3: Cross multiply
    538,910.94x = 743,687.28 × 297,215.94
  4. Step 4: Simplify right side
    538,910.94x = 221,035,713,991.24
  5. Step 5: Solve for x
    x = 221,035,713,991.24/538,910.94
  6. Step 6: Final answer
    x = 410,152.58

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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.