Home / 787,199.82-1,086,257.07-460,464.78

Finding the Fourth Proportional to 787,199.82, 1,086,257.07 and 460,464.78

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Solution

The fourth proportional to 787,199.82, 1,086,257.07 and 460,464.78 is: 635,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,199.82 : 1,086,257.07 = 460,464.78 : x
  2. Step 2: Convert to fraction form
    787,199.82/1,086,257.07 = 460,464.78/x
  3. Step 3: Cross multiply
    787,199.82x = 1,086,257.07 × 460,464.78
  4. Step 4: Simplify right side
    787,199.82x = 500,183,122,761.00
  5. Step 5: Solve for x
    x = 500,183,122,761.00/787,199.82
  6. Step 6: Final answer
    x = 635,395.37

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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.