Finding the Fourth Proportional to 705,343.68, 972,716.04 and 543,939.84
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Solution
The fourth proportional to 705,343.68, 972,716.04 and 543,939.84 is: 750,129.37
Step by Step Solution
- Step 1: Write the proportion equation
705,343.68 : 972,716.04 = 543,939.84 : x - Step 2: Convert to fraction form
705,343.68/972,716.04 = 543,939.84/x - Step 3: Cross multiply
705,343.68x = 972,716.04 × 543,939.84 - Step 4: Simplify right side
705,343.68x = 529,099,007,163.03 - Step 5: Solve for x
x = 529,099,007,163.03/705,343.68 - Step 6: Final answer
x = 750,129.37
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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.