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Finding the Fourth Proportional to 494,010, 739,830.92 and 253,490.96

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Solution

The fourth proportional to 494,010, 739,830.92 and 253,490.96 is: 379,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,010 : 739,830.92 = 253,490.96 : x
  2. Step 2: Convert to fraction form
    494,010/739,830.92 = 253,490.96/x
  3. Step 3: Cross multiply
    494,010x = 739,830.92 × 253,490.96
  4. Step 4: Simplify right side
    494,010x = 187,540,450,148.48
  5. Step 5: Solve for x
    x = 187,540,450,148.48/494,010
  6. Step 6: Final answer
    x = 379,628.85

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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.