Home / 820,464.46-1,230,841.14-280,593.82

Finding the Fourth Proportional to 820,464.46, 1,230,841.14 and 280,593.82

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Solution

The fourth proportional to 820,464.46, 1,230,841.14 and 280,593.82 is: 420,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,464.46 : 1,230,841.14 = 280,593.82 : x
  2. Step 2: Convert to fraction form
    820,464.46/1,230,841.14 = 280,593.82/x
  3. Step 3: Cross multiply
    820,464.46x = 1,230,841.14 × 280,593.82
  4. Step 4: Simplify right side
    820,464.46x = 345,366,417,285.76
  5. Step 5: Solve for x
    x = 345,366,417,285.76/820,464.46
  6. Step 6: Final answer
    x = 420,940.13

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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.