Finding the Fourth Proportional to 638,202.74, 880,680.21 and 351,706.82
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Solution
The fourth proportional to 638,202.74, 880,680.21 and 351,706.82 is: 485,333.60
Step by Step Solution
- Step 1: Write the proportion equation
638,202.74 : 880,680.21 = 351,706.82 : x - Step 2: Convert to fraction form
638,202.74/880,680.21 = 351,706.82/x - Step 3: Cross multiply
638,202.74x = 880,680.21 × 351,706.82 - Step 4: Simplify right side
638,202.74x = 309,741,236,096.03 - Step 5: Solve for x
x = 309,741,236,096.03/638,202.74 - Step 6: Final answer
x = 485,333.60
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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.