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Finding the Fourth Proportional to 605,222, 907,324.80 and 263,410.16

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Solution

The fourth proportional to 605,222, 907,324.80 and 263,410.16 is: 394,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,222 : 907,324.80 = 263,410.16 : x
  2. Step 2: Convert to fraction form
    605,222/907,324.80 = 263,410.16/x
  3. Step 3: Cross multiply
    605,222x = 907,324.80 × 263,410.16
  4. Step 4: Simplify right side
    605,222x = 238,998,570,739.97
  5. Step 5: Solve for x
    x = 238,998,570,739.97/605,222
  6. Step 6: Final answer
    x = 394,894.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.