Finding the Fourth Proportional to 393,616.26, 543,097.71 and 291,877.02
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Solution
The fourth proportional to 393,616.26, 543,097.71 and 291,877.02 is: 402,721.53
Step by Step Solution
- Step 1: Write the proportion equation
393,616.26 : 543,097.71 = 291,877.02 : x - Step 2: Convert to fraction form
393,616.26/543,097.71 = 291,877.02/x - Step 3: Cross multiply
393,616.26x = 543,097.71 × 291,877.02 - Step 4: Simplify right side
393,616.26x = 158,517,741,163.62 - Step 5: Solve for x
x = 158,517,741,163.62/393,616.26 - Step 6: Final answer
x = 402,721.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.