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Finding the Fourth Proportional to 494,958.78, 683,043.59 and 268,604.28

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Solution

The fourth proportional to 494,958.78, 683,043.59 and 268,604.28 is: 370,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,958.78 : 683,043.59 = 268,604.28 : x
  2. Step 2: Convert to fraction form
    494,958.78/683,043.59 = 268,604.28/x
  3. Step 3: Cross multiply
    494,958.78x = 683,043.59 × 268,604.28
  4. Step 4: Simplify right side
    494,958.78x = 183,468,431,700.57
  5. Step 5: Solve for x
    x = 183,468,431,700.57/494,958.78
  6. Step 6: Final answer
    x = 370,674.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.