Finding the Fourth Proportional to 1,259,133.31, 1,737,553.44 and 686,161.18
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Solution
The fourth proportional to 1,259,133.31, 1,737,553.44 and 686,161.18 is: 946,874.89
Step by Step Solution
- Step 1: Write the proportion equation
1,259,133.31 : 1,737,553.44 = 686,161.18 : x - Step 2: Convert to fraction form
1,259,133.31/1,737,553.44 = 686,161.18/x - Step 3: Cross multiply
1,259,133.31x = 1,737,553.44 × 686,161.18 - Step 4: Simplify right side
1,259,133.31x = 1,192,241,718,703.46 - Step 5: Solve for x
x = 1,192,241,718,703.46/1,259,133.31 - Step 6: Final answer
x = 946,874.89
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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.