Finding the Fourth Proportional to 415,611.87, 622,293.42 and 215,511.62
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Solution
The fourth proportional to 415,611.87, 622,293.42 and 215,511.62 is: 322,684.38
Step by Step Solution
- Step 1: Write the proportion equation
415,611.87 : 622,293.42 = 215,511.62 : x - Step 2: Convert to fraction form
415,611.87/622,293.42 = 215,511.62/x - Step 3: Cross multiply
415,611.87x = 622,293.42 × 215,511.62 - Step 4: Simplify right side
415,611.87x = 134,111,459,543.99 - Step 5: Solve for x
x = 134,111,459,543.99/415,611.87 - Step 6: Final answer
x = 322,684.38
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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.