Home / 860,375.56-1,289,400.77-327,605.95

Finding the Fourth Proportional to 860,375.56, 1,289,400.77 and 327,605.95

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Solution

The fourth proportional to 860,375.56, 1,289,400.77 and 327,605.95 is: 490,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,375.56 : 1,289,400.77 = 327,605.95 : x
  2. Step 2: Convert to fraction form
    860,375.56/1,289,400.77 = 327,605.95/x
  3. Step 3: Cross multiply
    860,375.56x = 1,289,400.77 × 327,605.95
  4. Step 4: Simplify right side
    860,375.56x = 422,415,369,034.97
  5. Step 5: Solve for x
    x = 422,415,369,034.97/860,375.56
  6. Step 6: Final answer
    x = 490,966.26

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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.