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Finding the Fourth Proportional to 449,843.04, 620,783.36 and 245,894.80

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Solution

The fourth proportional to 449,843.04, 620,783.36 and 245,894.80 is: 339,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,843.04 : 620,783.36 = 245,894.80 : x
  2. Step 2: Convert to fraction form
    449,843.04/620,783.36 = 245,894.80/x
  3. Step 3: Cross multiply
    449,843.04x = 620,783.36 × 245,894.80
  4. Step 4: Simplify right side
    449,843.04x = 152,647,400,150.53
  5. Step 5: Solve for x
    x = 152,647,400,150.53/449,843.04
  6. Step 6: Final answer
    x = 339,334.80

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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.