Finding the Fourth Proportional to 382,741.94, 528,093.75 and 321,720.08
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Solution
The fourth proportional to 382,741.94, 528,093.75 and 321,720.08 is: 443,897.95
Step by Step Solution
- Step 1: Write the proportion equation
382,741.94 : 528,093.75 = 321,720.08 : x - Step 2: Convert to fraction form
382,741.94/528,093.75 = 321,720.08/x - Step 3: Cross multiply
382,741.94x = 528,093.75 × 321,720.08 - Step 4: Simplify right side
382,741.94x = 169,898,362,063.48 - Step 5: Solve for x
x = 169,898,362,063.48/382,741.94 - Step 6: Final answer
x = 443,897.95
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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.