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Finding the Fourth Proportional to 449,786.46, 620,715.27 and 245,850.84

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Solution

The fourth proportional to 449,786.46, 620,715.27 and 245,850.84 is: 339,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,786.46 : 620,715.27 = 245,850.84 : x
  2. Step 2: Convert to fraction form
    449,786.46/620,715.27 = 245,850.84/x
  3. Step 3: Cross multiply
    449,786.46x = 620,715.27 × 245,850.84
  4. Step 4: Simplify right side
    449,786.46x = 152,603,370,530.33
  5. Step 5: Solve for x
    x = 152,603,370,530.33/449,786.46
  6. Step 6: Final answer
    x = 339,279.60

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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.