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Finding the Fourth Proportional to 489,336.45, 733,755.60 and 189,902.94

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Solution

The fourth proportional to 489,336.45, 733,755.60 and 189,902.94 is: 284,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,336.45 : 733,755.60 = 189,902.94 : x
  2. Step 2: Convert to fraction form
    489,336.45/733,755.60 = 189,902.94/x
  3. Step 3: Cross multiply
    489,336.45x = 733,755.60 × 189,902.94
  4. Step 4: Simplify right side
    489,336.45x = 139,342,345,681.46
  5. Step 5: Solve for x
    x = 139,342,345,681.46/489,336.45
  6. Step 6: Final answer
    x = 284,757.75

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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.