Finding the Fourth Proportional to 690,274.36, 952,577.94 and 388,474.84
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Solution
The fourth proportional to 690,274.36, 952,577.94 and 388,474.84 is: 536,094.90
Step by Step Solution
- Step 1: Write the proportion equation
690,274.36 : 952,577.94 = 388,474.84 : x - Step 2: Convert to fraction form
690,274.36/952,577.94 = 388,474.84/x - Step 3: Cross multiply
690,274.36x = 952,577.94 × 388,474.84 - Step 4: Simplify right side
690,274.36x = 370,052,562,829.03 - Step 5: Solve for x
x = 370,052,562,829.03/690,274.36 - Step 6: Final answer
x = 536,094.90
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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.