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Finding the Fourth Proportional to 478,796.43, 660,743.67 and 263,944.17

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Solution

The fourth proportional to 478,796.43, 660,743.67 and 263,944.17 is: 364,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,796.43 : 660,743.67 = 263,944.17 : x
  2. Step 2: Convert to fraction form
    478,796.43/660,743.67 = 263,944.17/x
  3. Step 3: Cross multiply
    478,796.43x = 660,743.67 × 263,944.17
  4. Step 4: Simplify right side
    478,796.43x = 174,399,439,560.90
  5. Step 5: Solve for x
    x = 174,399,439,560.90/478,796.43
  6. Step 6: Final answer
    x = 364,245.49

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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.