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Finding the Fourth Proportional to 492,709.77, 679,949.37 and 277,808.27

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Solution

The fourth proportional to 492,709.77, 679,949.37 and 277,808.27 is: 383,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,709.77 : 679,949.37 = 277,808.27 : x
  2. Step 2: Convert to fraction form
    492,709.77/679,949.37 = 277,808.27/x
  3. Step 3: Cross multiply
    492,709.77x = 679,949.37 × 277,808.27
  4. Step 4: Simplify right side
    492,709.77x = 188,895,554,767.54
  5. Step 5: Solve for x
    x = 188,895,554,767.54/492,709.77
  6. Step 6: Final answer
    x = 383,380.98

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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.