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Finding the Fourth Proportional to 510,223.41, 703,872.72 and 328,993.56

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Solution

The fourth proportional to 510,223.41, 703,872.72 and 328,993.56 is: 453,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,223.41 : 703,872.72 = 328,993.56 : x
  2. Step 2: Convert to fraction form
    510,223.41/703,872.72 = 328,993.56/x
  3. Step 3: Cross multiply
    510,223.41x = 703,872.72 × 328,993.56
  4. Step 4: Simplify right side
    510,223.41x = 231,569,591,939.68
  5. Step 5: Solve for x
    x = 231,569,591,939.68/510,223.41
  6. Step 6: Final answer
    x = 453,859.21

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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.