Finding the Fourth Proportional to 738,531.98, 1,107,916 and 312,071.84
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Solution
The fourth proportional to 738,531.98, 1,107,916 and 312,071.84 is: 468,157.63
Step by Step Solution
- Step 1: Write the proportion equation
738,531.98 : 1,107,916 = 312,071.84 : x - Step 2: Convert to fraction form
738,531.98/1,107,916 = 312,071.84/x - Step 3: Cross multiply
738,531.98x = 1,107,916 × 312,071.84 - Step 4: Simplify right side
738,531.98x = 345,749,384,685.44 - Step 5: Solve for x
x = 345,749,384,685.44/738,531.98 - Step 6: Final answer
x = 468,157.63
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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.