Home / 813,094.88-1,219,836.10-280,620.52

Finding the Fourth Proportional to 813,094.88, 1,219,836.10 and 280,620.52

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Solution

The fourth proportional to 813,094.88, 1,219,836.10 and 280,620.52 is: 420,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,094.88 : 1,219,836.10 = 280,620.52 : x
  2. Step 2: Convert to fraction form
    813,094.88/1,219,836.10 = 280,620.52/x
  3. Step 3: Cross multiply
    813,094.88x = 1,219,836.10 × 280,620.52
  4. Step 4: Simplify right side
    813,094.88x = 342,311,040,696.77
  5. Step 5: Solve for x
    x = 342,311,040,696.77/813,094.88
  6. Step 6: Final answer
    x = 420,997.66

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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.