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Finding the Fourth Proportional to 494,409.58, 682,299.60 and 279,545.02

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Solution

The fourth proportional to 494,409.58, 682,299.60 and 279,545.02 is: 385,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,409.58 : 682,299.60 = 279,545.02 : x
  2. Step 2: Convert to fraction form
    494,409.58/682,299.60 = 279,545.02/x
  3. Step 3: Cross multiply
    494,409.58x = 682,299.60 × 279,545.02
  4. Step 4: Simplify right side
    494,409.58x = 190,733,455,327.99
  5. Step 5: Solve for x
    x = 190,733,455,327.99/494,409.58
  6. Step 6: Final answer
    x = 385,780.26

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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.