Finding the Fourth Proportional to 642,197.63, 886,232.79 and 355,736.27
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Solution
The fourth proportional to 642,197.63, 886,232.79 and 355,736.27 is: 490,916.08
Step by Step Solution
- Step 1: Write the proportion equation
642,197.63 : 886,232.79 = 355,736.27 : x - Step 2: Convert to fraction form
642,197.63/886,232.79 = 355,736.27/x - Step 3: Cross multiply
642,197.63x = 886,232.79 × 355,736.27 - Step 4: Simplify right side
642,197.63x = 315,265,142,635.13 - Step 5: Solve for x
x = 315,265,142,635.13/642,197.63 - Step 6: Final answer
x = 490,916.08
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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.