Home / 879,198.21-1,318,782.78-280,151.24

Finding the Fourth Proportional to 879,198.21, 1,318,782.78 and 280,151.24

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Solution

The fourth proportional to 879,198.21, 1,318,782.78 and 280,151.24 is: 420,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,198.21 : 1,318,782.78 = 280,151.24 : x
  2. Step 2: Convert to fraction form
    879,198.21/1,318,782.78 = 280,151.24/x
  3. Step 3: Cross multiply
    879,198.21x = 1,318,782.78 × 280,151.24
  4. Step 4: Simplify right side
    879,198.21x = 369,458,624,513.73
  5. Step 5: Solve for x
    x = 369,458,624,513.73/879,198.21
  6. Step 6: Final answer
    x = 420,222.22

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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.