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Finding the Fourth Proportional to 492,783.17, 680,039.82 and 277,922.57

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Solution

The fourth proportional to 492,783.17, 680,039.82 and 277,922.57 is: 383,532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,783.17 : 680,039.82 = 277,922.57 : x
  2. Step 2: Convert to fraction form
    492,783.17/680,039.82 = 277,922.57/x
  3. Step 3: Cross multiply
    492,783.17x = 680,039.82 × 277,922.57
  4. Step 4: Simplify right side
    492,783.17x = 188,998,411,076.54
  5. Step 5: Solve for x
    x = 188,998,411,076.54/492,783.17
  6. Step 6: Final answer
    x = 383,532.61

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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.