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Finding the Fourth Proportional to 379,911.94, 569,343.03 and 329,873.38

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Solution

The fourth proportional to 379,911.94, 569,343.03 and 329,873.38 is: 494,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,911.94 : 569,343.03 = 329,873.38 : x
  2. Step 2: Convert to fraction form
    379,911.94/569,343.03 = 329,873.38/x
  3. Step 3: Cross multiply
    379,911.94x = 569,343.03 × 329,873.38
  4. Step 4: Simplify right side
    379,911.94x = 187,811,109,685.54
  5. Step 5: Solve for x
    x = 187,811,109,685.54/379,911.94
  6. Step 6: Final answer
    x = 494,354.32

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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.