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Finding the Fourth Proportional to 695,201.48, 959,398.26 and 393,389

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Solution

The fourth proportional to 695,201.48, 959,398.26 and 393,389 is: 542,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,201.48 : 959,398.26 = 393,389 : x
  2. Step 2: Convert to fraction form
    695,201.48/959,398.26 = 393,389/x
  3. Step 3: Cross multiply
    695,201.48x = 959,398.26 × 393,389
  4. Step 4: Simplify right side
    695,201.48x = 377,416,722,103.14
  5. Step 5: Solve for x
    x = 377,416,722,103.14/695,201.48
  6. Step 6: Final answer
    x = 542,888.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.