Finding the Fourth Proportional to 491,674.14, 678,523.14 and 276,822.09
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Solution
The fourth proportional to 491,674.14, 678,523.14 and 276,822.09 is: 382,021.71
Step by Step Solution
- Step 1: Write the proportion equation
491,674.14 : 678,523.14 = 276,822.09 : x - Step 2: Convert to fraction form
491,674.14/678,523.14 = 276,822.09/x - Step 3: Cross multiply
491,674.14x = 678,523.14 × 276,822.09 - Step 4: Simplify right side
491,674.14x = 187,830,193,728.16 - Step 5: Solve for x
x = 187,830,193,728.16/491,674.14 - Step 6: Final answer
x = 382,021.71
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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.