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Finding the Fourth Proportional to 449,844.61, 620,785.50 and 245,896.33

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Solution

The fourth proportional to 449,844.61, 620,785.50 and 245,896.33 is: 339,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,844.61 : 620,785.50 = 245,896.33 : x
  2. Step 2: Convert to fraction form
    449,844.61/620,785.50 = 245,896.33/x
  3. Step 3: Cross multiply
    449,844.61x = 620,785.50 × 245,896.33
  4. Step 4: Simplify right side
    449,844.61x = 152,648,873,063.29
  5. Step 5: Solve for x
    x = 152,648,873,063.29/449,844.61
  6. Step 6: Final answer
    x = 339,336.90

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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.