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Finding the Fourth Proportional to 538,849.60, 743,656.72 and 297,179.44

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Solution

The fourth proportional to 538,849.60, 743,656.72 and 297,179.44 is: 410,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,849.60 : 743,656.72 = 297,179.44 : x
  2. Step 2: Convert to fraction form
    538,849.60/743,656.72 = 297,179.44/x
  3. Step 3: Cross multiply
    538,849.60x = 743,656.72 × 297,179.44
  4. Step 4: Simplify right side
    538,849.60x = 220,999,487,601.84
  5. Step 5: Solve for x
    x = 220,999,487,601.84/538,849.60
  6. Step 6: Final answer
    x = 410,132.04

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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.