Finding the Fourth Proportional to 449,297.23, 618,976.45 and 313,083.99
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Solution
The fourth proportional to 449,297.23, 618,976.45 and 313,083.99 is: 431,321.64
Step by Step Solution
- Step 1: Write the proportion equation
449,297.23 : 618,976.45 = 313,083.99 : x - Step 2: Convert to fraction form
449,297.23/618,976.45 = 313,083.99/x - Step 3: Cross multiply
449,297.23x = 618,976.45 × 313,083.99 - Step 4: Simplify right side
449,297.23x = 193,791,616,682.04 - Step 5: Solve for x
x = 193,791,616,682.04/449,297.23 - Step 6: Final answer
x = 431,321.64
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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.