Finding the Fourth Proportional to 638,436.71, 957,795.17 and 189,192.74
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Solution
The fourth proportional to 638,436.71, 957,795.17 and 189,192.74 is: 283,830.62
Step by Step Solution
- Step 1: Write the proportion equation
638,436.71 : 957,795.17 = 189,192.74 : x - Step 2: Convert to fraction form
638,436.71/957,795.17 = 189,192.74/x - Step 3: Cross multiply
638,436.71x = 957,795.17 × 189,192.74 - Step 4: Simplify right side
638,436.71x = 181,207,886,836.13 - Step 5: Solve for x
x = 181,207,886,836.13/638,436.71 - Step 6: Final answer
x = 283,830.62
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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.