Home / 860,992.04-1,291,435.78-321,144.26

Finding the Fourth Proportional to 860,992.04, 1,291,435.78 and 321,144.26

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Solution

The fourth proportional to 860,992.04, 1,291,435.78 and 321,144.26 is: 481,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,992.04 : 1,291,435.78 = 321,144.26 : x
  2. Step 2: Convert to fraction form
    860,992.04/1,291,435.78 = 321,144.26/x
  3. Step 3: Cross multiply
    860,992.04x = 1,291,435.78 × 321,144.26
  4. Step 4: Simplify right side
    860,992.04x = 414,737,179,842.72
  5. Step 5: Solve for x
    x = 414,737,179,842.72/860,992.04
  6. Step 6: Final answer
    x = 481,696.88

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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.