Home / 858,103.58-1,287,363.47-259,028.93

Finding the Fourth Proportional to 858,103.58, 1,287,363.47 and 259,028.93

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Solution

The fourth proportional to 858,103.58, 1,287,363.47 and 259,028.93 is: 388,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,103.58 : 1,287,363.47 = 259,028.93 : x
  2. Step 2: Convert to fraction form
    858,103.58/1,287,363.47 = 259,028.93/x
  3. Step 3: Cross multiply
    858,103.58x = 1,287,363.47 × 259,028.93
  4. Step 4: Simplify right side
    858,103.58x = 333,464,382,155.19
  5. Step 5: Solve for x
    x = 333,464,382,155.19/858,103.58
  6. Step 6: Final answer
    x = 388,606.21

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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.