Finding the Fourth Proportional to 449,593.63, 620,431.97 and 245,640.18
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Solution
The fourth proportional to 449,593.63, 620,431.97 and 245,640.18 is: 338,979.49
Step by Step Solution
- Step 1: Write the proportion equation
449,593.63 : 620,431.97 = 245,640.18 : x - Step 2: Convert to fraction form
449,593.63/620,431.97 = 245,640.18/x - Step 3: Cross multiply
449,593.63x = 620,431.97 × 245,640.18 - Step 4: Simplify right side
449,593.63x = 152,403,017,379.35 - Step 5: Solve for x
x = 152,403,017,379.35/449,593.63 - Step 6: Final answer
x = 338,979.49
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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.