Home / 879,238.62-1,318,843.53-280,191.78

Finding the Fourth Proportional to 879,238.62, 1,318,843.53 and 280,191.78

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Solution

The fourth proportional to 879,238.62, 1,318,843.53 and 280,191.78 is: 420,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,238.62 : 1,318,843.53 = 280,191.78 : x
  2. Step 2: Convert to fraction form
    879,238.62/1,318,843.53 = 280,191.78/x
  3. Step 3: Cross multiply
    879,238.62x = 1,318,843.53 × 280,191.78
  4. Step 4: Simplify right side
    879,238.62x = 369,529,116,212.18
  5. Step 5: Solve for x
    x = 369,529,116,212.18/879,238.62
  6. Step 6: Final answer
    x = 420,283.08

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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.