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Finding the Fourth Proportional to 379,910.94, 569,341.53 and 329,872.38

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Solution

The fourth proportional to 379,910.94, 569,341.53 and 329,872.38 is: 494,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,910.94 : 569,341.53 = 329,872.38 : x
  2. Step 2: Convert to fraction form
    379,910.94/569,341.53 = 329,872.38/x
  3. Step 3: Cross multiply
    379,910.94x = 569,341.53 × 329,872.38
  4. Step 4: Simplify right side
    379,910.94x = 187,810,045,533.94
  5. Step 5: Solve for x
    x = 187,810,045,533.94/379,910.94
  6. Step 6: Final answer
    x = 494,352.82

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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.