Home / 858,114.32-1,287,379.58-259,039.68

Finding the Fourth Proportional to 858,114.32, 1,287,379.58 and 259,039.68

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Solution

The fourth proportional to 858,114.32, 1,287,379.58 and 259,039.68 is: 388,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,114.32 : 1,287,379.58 = 259,039.68 : x
  2. Step 2: Convert to fraction form
    858,114.32/1,287,379.58 = 259,039.68/x
  3. Step 3: Cross multiply
    858,114.32x = 1,287,379.58 × 259,039.68
  4. Step 4: Simplify right side
    858,114.32x = 333,482,394,441.73
  5. Step 5: Solve for x
    x = 333,482,394,441.73/858,114.32
  6. Step 6: Final answer
    x = 388,622.34

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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.