Home / 1,224,825.96-1,690,399.62-681,015.72

Finding the Fourth Proportional to 1,224,825.96, 1,690,399.62 and 681,015.72

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Solution

The fourth proportional to 1,224,825.96, 1,690,399.62 and 681,015.72 is: 939,879.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,825.96 : 1,690,399.62 = 681,015.72 : x
  2. Step 2: Convert to fraction form
    1,224,825.96/1,690,399.62 = 681,015.72/x
  3. Step 3: Cross multiply
    1,224,825.96x = 1,690,399.62 × 681,015.72
  4. Step 4: Simplify right side
    1,224,825.96x = 1,151,188,714,302.03
  5. Step 5: Solve for x
    x = 1,151,188,714,302.03/1,224,825.96
  6. Step 6: Final answer
    x = 939,879.42

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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.