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Finding the Fourth Proportional to 449,491.26, 620,297.92 and 248,287.26

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Solution

The fourth proportional to 449,491.26, 620,297.92 and 248,287.26 is: 342,636.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,491.26 : 620,297.92 = 248,287.26 : x
  2. Step 2: Convert to fraction form
    449,491.26/620,297.92 = 248,287.26/x
  3. Step 3: Cross multiply
    449,491.26x = 620,297.92 × 248,287.26
  4. Step 4: Simplify right side
    449,491.26x = 154,012,070,940.50
  5. Step 5: Solve for x
    x = 154,012,070,940.50/449,491.26
  6. Step 6: Final answer
    x = 342,636.41

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1.5x scale

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.