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Finding the Fourth Proportional to 538,866.88, 743,630.08 and 297,170.56

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Solution

The fourth proportional to 538,866.88, 743,630.08 and 297,170.56 is: 410,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,866.88 : 743,630.08 = 297,170.56 : x
  2. Step 2: Convert to fraction form
    538,866.88/743,630.08 = 297,170.56/x
  3. Step 3: Cross multiply
    538,866.88x = 743,630.08 × 297,170.56
  4. Step 4: Simplify right side
    538,866.88x = 220,984,967,306.45
  5. Step 5: Solve for x
    x = 220,984,967,306.45/538,866.88
  6. Step 6: Final answer
    x = 410,091.95

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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.