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Finding the Fourth Proportional to 379,589.07, 523,817.01 and 224,640.81

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Solution

The fourth proportional to 379,589.07, 523,817.01 and 224,640.81 is: 309,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,589.07 : 523,817.01 = 224,640.81 : x
  2. Step 2: Convert to fraction form
    379,589.07/523,817.01 = 224,640.81/x
  3. Step 3: Cross multiply
    379,589.07x = 523,817.01 × 224,640.81
  4. Step 4: Simplify right side
    379,589.07x = 117,670,677,418.18
  5. Step 5: Solve for x
    x = 117,670,677,418.18/379,589.07
  6. Step 6: Final answer
    x = 309,994.90

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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.