Finding the Fourth Proportional to 1,186,511.82, 1,637,382.36 and 642,646.26
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Solution
The fourth proportional to 1,186,511.82, 1,637,382.36 and 642,646.26 is: 886,849.70
Step by Step Solution
- Step 1: Write the proportion equation
1,186,511.82 : 1,637,382.36 = 642,646.26 : x - Step 2: Convert to fraction form
1,186,511.82/1,637,382.36 = 642,646.26/x - Step 3: Cross multiply
1,186,511.82x = 1,637,382.36 × 642,646.26 - Step 4: Simplify right side
1,186,511.82x = 1,052,257,649,843.97 - Step 5: Solve for x
x = 1,052,257,649,843.97/1,186,511.82 - Step 6: Final answer
x = 886,849.70
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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.