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Finding the Fourth Proportional to 494,391.84, 740,994.45 and 254,618.57

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Solution

The fourth proportional to 494,391.84, 740,994.45 and 254,618.57 is: 381,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,391.84 : 740,994.45 = 254,618.57 : x
  2. Step 2: Convert to fraction form
    494,391.84/740,994.45 = 254,618.57/x
  3. Step 3: Cross multiply
    494,391.84x = 740,994.45 × 254,618.57
  4. Step 4: Simplify right side
    494,391.84x = 188,670,948,134.60
  5. Step 5: Solve for x
    x = 188,670,948,134.60/494,391.84
  6. Step 6: Final answer
    x = 381,622.30

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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.