Home / 860,246.75-1,290,286.73-261,213.17

Finding the Fourth Proportional to 860,246.75, 1,290,286.73 and 261,213.17

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Solution

The fourth proportional to 860,246.75, 1,290,286.73 and 261,213.17 is: 391,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,246.75 : 1,290,286.73 = 261,213.17 : x
  2. Step 2: Convert to fraction form
    860,246.75/1,290,286.73 = 261,213.17/x
  3. Step 3: Cross multiply
    860,246.75x = 1,290,286.73 × 261,213.17
  4. Step 4: Simplify right side
    860,246.75x = 337,039,885,992.41
  5. Step 5: Solve for x
    x = 337,039,885,992.41/860,246.75
  6. Step 6: Final answer
    x = 391,794.43

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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.