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Finding the Fourth Proportional to 449,571.62, 620,451.72 and 245,653.54

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Solution

The fourth proportional to 449,571.62, 620,451.72 and 245,653.54 is: 339,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,571.62 : 620,451.72 = 245,653.54 : x
  2. Step 2: Convert to fraction form
    449,571.62/620,451.72 = 245,653.54/x
  3. Step 3: Cross multiply
    449,571.62x = 620,451.72 × 245,653.54
  4. Step 4: Simplify right side
    449,571.62x = 152,416,161,417.09
  5. Step 5: Solve for x
    x = 152,416,161,417.09/449,571.62
  6. Step 6: Final answer
    x = 339,025.32

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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.