Home / 921,918.72-1,383,524.49-382,183.32

Finding the Fourth Proportional to 921,918.72, 1,383,524.49 and 382,183.32

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Solution

The fourth proportional to 921,918.72, 1,383,524.49 and 382,183.32 is: 573,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,918.72 : 1,383,524.49 = 382,183.32 : x
  2. Step 2: Convert to fraction form
    921,918.72/1,383,524.49 = 382,183.32/x
  3. Step 3: Cross multiply
    921,918.72x = 1,383,524.49 × 382,183.32
  4. Step 4: Simplify right side
    921,918.72x = 528,759,982,889.51
  5. Step 5: Solve for x
    x = 528,759,982,889.51/921,918.72
  6. Step 6: Final answer
    x = 573,542.95

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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.