Finding the Fourth Proportional to 543,615.07, 815,062.69 and 259,349.49
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Solution
The fourth proportional to 543,615.07, 815,062.69 and 259,349.49 is: 388,852.53
Step by Step Solution
- Step 1: Write the proportion equation
543,615.07 : 815,062.69 = 259,349.49 : x - Step 2: Convert to fraction form
543,615.07/815,062.69 = 259,349.49/x - Step 3: Cross multiply
543,615.07x = 815,062.69 × 259,349.49 - Step 4: Simplify right side
543,615.07x = 211,386,093,293.72 - Step 5: Solve for x
x = 211,386,093,293.72/543,615.07 - Step 6: Final answer
x = 388,852.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.