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Finding the Fourth Proportional to 539,884.38, 745,046.07 and 298,173.09

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Solution

The fourth proportional to 539,884.38, 745,046.07 and 298,173.09 is: 411,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,884.38 : 745,046.07 = 298,173.09 : x
  2. Step 2: Convert to fraction form
    539,884.38/745,046.07 = 298,173.09/x
  3. Step 3: Cross multiply
    539,884.38x = 745,046.07 × 298,173.09
  4. Step 4: Simplify right side
    539,884.38x = 222,152,688,884.26
  5. Step 5: Solve for x
    x = 222,152,688,884.26/539,884.38
  6. Step 6: Final answer
    x = 411,481.97

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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.