Finding the Fourth Proportional to 631,651.68, 871,664.94 and 345,173.49
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Solution
The fourth proportional to 631,651.68, 871,664.94 and 345,173.49 is: 476,331.56
Step by Step Solution
- Step 1: Write the proportion equation
631,651.68 : 871,664.94 = 345,173.49 : x - Step 2: Convert to fraction form
631,651.68/871,664.94 = 345,173.49/x - Step 3: Cross multiply
631,651.68x = 871,664.94 × 345,173.49 - Step 4: Simplify right side
631,651.68x = 300,875,629,450.44 - Step 5: Solve for x
x = 300,875,629,450.44/631,651.68 - Step 6: Final answer
x = 476,331.56
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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.