Finding the Fourth Proportional to 774,702.49, 1,162,120.74 and 213,736.99
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Solution
The fourth proportional to 774,702.49, 1,162,120.74 and 213,736.99 is: 320,623.97
Step by Step Solution
- Step 1: Write the proportion equation
774,702.49 : 1,162,120.74 = 213,736.99 : x - Step 2: Convert to fraction form
774,702.49/1,162,120.74 = 213,736.99/x - Step 3: Cross multiply
774,702.49x = 1,162,120.74 × 213,736.99 - Step 4: Simplify right side
774,702.49x = 248,388,188,984.17 - Step 5: Solve for x
x = 248,388,188,984.17/774,702.49 - Step 6: Final answer
x = 320,623.97
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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.