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Finding the Fourth Proportional to 494,479.20, 741,718.80 and 376,381.20

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Solution

The fourth proportional to 494,479.20, 741,718.80 and 376,381.20 is: 564,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,479.20 : 741,718.80 = 376,381.20 : x
  2. Step 2: Convert to fraction form
    494,479.20/741,718.80 = 376,381.20/x
  3. Step 3: Cross multiply
    494,479.20x = 741,718.80 × 376,381.20
  4. Step 4: Simplify right side
    494,479.20x = 279,169,012,006.56
  5. Step 5: Solve for x
    x = 279,169,012,006.56/494,479.20
  6. Step 6: Final answer
    x = 564,571.80

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Similar ratio
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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.