Finding the Fourth Proportional to 1,286,737.80, 1,775,554.92 and 713,634.36
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Solution
The fourth proportional to 1,286,737.80, 1,775,554.92 and 713,634.36 is: 984,735.97
Step by Step Solution
- Step 1: Write the proportion equation
1,286,737.80 : 1,775,554.92 = 713,634.36 : x - Step 2: Convert to fraction form
1,286,737.80/1,775,554.92 = 713,634.36/x - Step 3: Cross multiply
1,286,737.80x = 1,775,554.92 × 713,634.36 - Step 4: Simplify right side
1,286,737.80x = 1,267,096,998,979.05 - Step 5: Solve for x
x = 1,267,096,998,979.05/1,286,737.80 - Step 6: Final answer
x = 984,735.97
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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.