Finding the Fourth Proportional to 718,084.26, 990,943.98 and 395,824.34
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Solution
The fourth proportional to 718,084.26, 990,943.98 and 395,824.34 is: 546,230.80
Step by Step Solution
- Step 1: Write the proportion equation
718,084.26 : 990,943.98 = 395,824.34 : x - Step 2: Convert to fraction form
718,084.26/990,943.98 = 395,824.34/x - Step 3: Cross multiply
718,084.26x = 990,943.98 × 395,824.34 - Step 4: Simplify right side
718,084.26x = 392,239,741,905.75 - Step 5: Solve for x
x = 392,239,741,905.75/718,084.26 - Step 6: Final answer
x = 546,230.80
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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.