Finding the Fourth Proportional to 741,642.82, 1,112,463.69 and 268,217.80
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Solution
The fourth proportional to 741,642.82, 1,112,463.69 and 268,217.80 is: 402,326.50
Step by Step Solution
- Step 1: Write the proportion equation
741,642.82 : 1,112,463.69 = 268,217.80 : x - Step 2: Convert to fraction form
741,642.82/1,112,463.69 = 268,217.80/x - Step 3: Cross multiply
741,642.82x = 1,112,463.69 × 268,217.80 - Step 4: Simplify right side
741,642.82x = 298,382,563,511.68 - Step 5: Solve for x
x = 298,382,563,511.68/741,642.82 - Step 6: Final answer
x = 402,326.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.