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Finding the Fourth Proportional to 449,705.36, 620,632.68 and 248,540.24

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Solution

The fourth proportional to 449,705.36, 620,632.68 and 248,540.24 is: 343,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,705.36 : 620,632.68 = 248,540.24 : x
  2. Step 2: Convert to fraction form
    449,705.36/620,632.68 = 248,540.24/x
  3. Step 3: Cross multiply
    449,705.36x = 620,632.68 × 248,540.24
  4. Step 4: Simplify right side
    449,705.36x = 154,252,195,239.04
  5. Step 5: Solve for x
    x = 154,252,195,239.04/449,705.36
  6. Step 6: Final answer
    x = 343,007.24

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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.