Home / 858,114.23-1,287,379.40-259,039.58

Finding the Fourth Proportional to 858,114.23, 1,287,379.40 and 259,039.58

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Solution

The fourth proportional to 858,114.23, 1,287,379.40 and 259,039.58 is: 388,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,114.23 : 1,287,379.40 = 259,039.58 : x
  2. Step 2: Convert to fraction form
    858,114.23/1,287,379.40 = 259,039.58/x
  3. Step 3: Cross multiply
    858,114.23x = 1,287,379.40 × 259,039.58
  4. Step 4: Simplify right side
    858,114.23x = 333,482,211,344.56
  5. Step 5: Solve for x
    x = 333,482,211,344.56/858,114.23
  6. Step 6: Final answer
    x = 388,622.17

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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.