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Finding the Fourth Proportional to 373,936, 560,939.22 and 289,790.38

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Solution

The fourth proportional to 373,936, 560,939.22 and 289,790.38 is: 434,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,936 : 560,939.22 = 289,790.38 : x
  2. Step 2: Convert to fraction form
    373,936/560,939.22 = 289,790.38/x
  3. Step 3: Cross multiply
    373,936x = 560,939.22 × 289,790.38
  4. Step 4: Simplify right side
    373,936x = 162,554,789,720.70
  5. Step 5: Solve for x
    x = 162,554,789,720.70/373,936
  6. Step 6: Final answer
    x = 434,712.86

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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.