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Finding the Fourth Proportional to 695,840.50, 960,259.89 and 394,092.82

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Solution

The fourth proportional to 695,840.50, 960,259.89 and 394,092.82 is: 543,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,840.50 : 960,259.89 = 394,092.82 : x
  2. Step 2: Convert to fraction form
    695,840.50/960,259.89 = 394,092.82/x
  3. Step 3: Cross multiply
    695,840.50x = 960,259.89 × 394,092.82
  4. Step 4: Simplify right side
    695,840.50x = 378,431,527,982.99
  5. Step 5: Solve for x
    x = 378,431,527,982.99/695,840.50
  6. Step 6: Final answer
    x = 543,848.09

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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.