Finding the Fourth Proportional to 638,904.41, 957,850.72 and 318,891.63
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Solution
The fourth proportional to 638,904.41, 957,850.72 and 318,891.63 is: 478,084.95
Step by Step Solution
- Step 1: Write the proportion equation
638,904.41 : 957,850.72 = 318,891.63 : x - Step 2: Convert to fraction form
638,904.41/957,850.72 = 318,891.63/x - Step 3: Cross multiply
638,904.41x = 957,850.72 × 318,891.63 - Step 4: Simplify right side
638,904.41x = 305,450,580,192.19 - Step 5: Solve for x
x = 305,450,580,192.19/638,904.41 - Step 6: Final answer
x = 478,084.95
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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.