Finding the Fourth Proportional to 642,418.26, 964,510.11 and 327,087.06
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Solution
The fourth proportional to 642,418.26, 964,510.11 and 327,087.06 is: 491,080.03
Step by Step Solution
- Step 1: Write the proportion equation
642,418.26 : 964,510.11 = 327,087.06 : x - Step 2: Convert to fraction form
642,418.26/964,510.11 = 327,087.06/x - Step 3: Cross multiply
642,418.26x = 964,510.11 × 327,087.06 - Step 4: Simplify right side
642,418.26x = 315,478,776,220.18 - Step 5: Solve for x
x = 315,478,776,220.18/642,418.26 - Step 6: Final answer
x = 491,080.03
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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.