Home / 858,102.58-1,287,361.97-259,027.93

Finding the Fourth Proportional to 858,102.58, 1,287,361.97 and 259,027.93

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Solution

The fourth proportional to 858,102.58, 1,287,361.97 and 259,027.93 is: 388,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,102.58 : 1,287,361.97 = 259,027.93 : x
  2. Step 2: Convert to fraction form
    858,102.58/1,287,361.97 = 259,027.93/x
  3. Step 3: Cross multiply
    858,102.58x = 1,287,361.97 × 259,027.93
  4. Step 4: Simplify right side
    858,102.58x = 333,462,701,750.86
  5. Step 5: Solve for x
    x = 333,462,701,750.86/858,102.58
  6. Step 6: Final answer
    x = 388,604.71

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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.