Home / 860,246.40-1,290,286.22-261,212.83

Finding the Fourth Proportional to 860,246.40, 1,290,286.22 and 261,212.83

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Solution

The fourth proportional to 860,246.40, 1,290,286.22 and 261,212.83 is: 391,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,246.40 : 1,290,286.22 = 261,212.83 : x
  2. Step 2: Convert to fraction form
    860,246.40/1,290,286.22 = 261,212.83/x
  3. Step 3: Cross multiply
    860,246.40x = 1,290,286.22 × 261,212.83
  4. Step 4: Simplify right side
    860,246.40x = 337,039,308,584.77
  5. Step 5: Solve for x
    x = 337,039,308,584.77/860,246.40
  6. Step 6: Final answer
    x = 391,793.92

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1.5x scale

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.