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Finding the Fourth Proportional to 538,878.56, 743,618.04 and 297,162.68

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Solution

The fourth proportional to 538,878.56, 743,618.04 and 297,162.68 is: 410,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,878.56 : 743,618.04 = 297,162.68 : x
  2. Step 2: Convert to fraction form
    538,878.56/743,618.04 = 297,162.68/x
  3. Step 3: Cross multiply
    538,878.56x = 743,618.04 × 297,162.68
  4. Step 4: Simplify right side
    538,878.56x = 220,975,529,662.75
  5. Step 5: Solve for x
    x = 220,975,529,662.75/538,878.56
  6. Step 6: Final answer
    x = 410,065.54

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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.