Finding the Fourth Proportional to 3,054,805.09, 4,215,633.81 and 1,678,237.98
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Solution
The fourth proportional to 3,054,805.09, 4,215,633.81 and 1,678,237.98 is: 2,315,969.94
Step by Step Solution
- Step 1: Write the proportion equation
3,054,805.09 : 4,215,633.81 = 1,678,237.98 : x - Step 2: Convert to fraction form
3,054,805.09/4,215,633.81 = 1,678,237.98/x - Step 3: Cross multiply
3,054,805.09x = 4,215,633.81 × 1,678,237.98 - Step 4: Simplify right side
3,054,805.09x = 7,074,836,769,714.10 - Step 5: Solve for x
x = 7,074,836,769,714.10/3,054,805.09 - Step 6: Final answer
x = 2,315,969.94
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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.