Finding the Fourth Proportional to 328,611.26, 492,916.93 and 79,293.26
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Solution
The fourth proportional to 328,611.26, 492,916.93 and 79,293.26 is: 118,939.90
Step by Step Solution
- Step 1: Write the proportion equation
328,611.26 : 492,916.93 = 79,293.26 : x - Step 2: Convert to fraction form
328,611.26/492,916.93 = 79,293.26/x - Step 3: Cross multiply
328,611.26x = 492,916.93 × 79,293.26 - Step 4: Simplify right side
328,611.26x = 39,084,990,288.89 - Step 5: Solve for x
x = 39,084,990,288.89/328,611.26 - Step 6: Final answer
x = 118,939.90
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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.