Home / 879,198.40-1,318,783.06-280,151.42

Finding the Fourth Proportional to 879,198.40, 1,318,783.06 and 280,151.42

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Solution

The fourth proportional to 879,198.40, 1,318,783.06 and 280,151.42 is: 420,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,198.40 : 1,318,783.06 = 280,151.42 : x
  2. Step 2: Convert to fraction form
    879,198.40/1,318,783.06 = 280,151.42/x
  3. Step 3: Cross multiply
    879,198.40x = 1,318,783.06 × 280,151.42
  4. Step 4: Simplify right side
    879,198.40x = 369,458,950,578.09
  5. Step 5: Solve for x
    x = 369,458,950,578.09/879,198.40
  6. Step 6: Final answer
    x = 420,222.50

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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.