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Finding the Fourth Proportional to 329,757.20, 494,713.79 and 262,543.40

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Solution

The fourth proportional to 329,757.20, 494,713.79 and 262,543.40 is: 393,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,757.20 : 494,713.79 = 262,543.40 : x
  2. Step 2: Convert to fraction form
    329,757.20/494,713.79 = 262,543.40/x
  3. Step 3: Cross multiply
    329,757.20x = 494,713.79 × 262,543.40
  4. Step 4: Simplify right side
    329,757.20x = 129,883,840,453.49
  5. Step 5: Solve for x
    x = 129,883,840,453.49/329,757.20
  6. Step 6: Final answer
    x = 393,877.19

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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.