Home / 813,093.88-1,219,834.60-280,619.52

Finding the Fourth Proportional to 813,093.88, 1,219,834.60 and 280,619.52

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Solution

The fourth proportional to 813,093.88, 1,219,834.60 and 280,619.52 is: 420,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,093.88 : 1,219,834.60 = 280,619.52 : x
  2. Step 2: Convert to fraction form
    813,093.88/1,219,834.60 = 280,619.52/x
  3. Step 3: Cross multiply
    813,093.88x = 1,219,834.60 × 280,619.52
  4. Step 4: Simplify right side
    813,093.88x = 342,309,399,931.39
  5. Step 5: Solve for x
    x = 342,309,399,931.39/813,093.88
  6. Step 6: Final answer
    x = 420,996.16

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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.