Finding the Fourth Proportional to 1,251,745.74, 1,727,409.11 and 678,786.36
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Solution
The fourth proportional to 1,251,745.74, 1,727,409.11 and 678,786.36 is: 936,725.17
Step by Step Solution
- Step 1: Write the proportion equation
1,251,745.74 : 1,727,409.11 = 678,786.36 : x - Step 2: Convert to fraction form
1,251,745.74/1,727,409.11 = 678,786.36/x - Step 3: Cross multiply
1,251,745.74x = 1,727,409.11 × 678,786.36 - Step 4: Simplify right side
1,251,745.74x = 1,172,541,738,613.81 - Step 5: Solve for x
x = 1,172,541,738,613.81/1,251,745.74 - Step 6: Final answer
x = 936,725.17
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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.