Home / 809,447.50-1,214,230.11-310,811.50

Finding the Fourth Proportional to 809,447.50, 1,214,230.11 and 310,811.50

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Solution

The fourth proportional to 809,447.50, 1,214,230.11 and 310,811.50 is: 466,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,447.50 : 1,214,230.11 = 310,811.50 : x
  2. Step 2: Convert to fraction form
    809,447.50/1,214,230.11 = 310,811.50/x
  3. Step 3: Cross multiply
    809,447.50x = 1,214,230.11 × 310,811.50
  4. Step 4: Simplify right side
    809,447.50x = 377,396,681,834.27
  5. Step 5: Solve for x
    x = 377,396,681,834.27/809,447.50
  6. Step 6: Final answer
    x = 466,239.85

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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.