Finding the Fourth Proportional to 764,715.76, 1,055,334.84 and 420,578.29
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Solution
The fourth proportional to 764,715.76, 1,055,334.84 and 420,578.29 is: 580,412.94
Step by Step Solution
- Step 1: Write the proportion equation
764,715.76 : 1,055,334.84 = 420,578.29 : x - Step 2: Convert to fraction form
764,715.76/1,055,334.84 = 420,578.29/x - Step 3: Cross multiply
764,715.76x = 1,055,334.84 × 420,578.29 - Step 4: Simplify right side
764,715.76x = 443,850,922,384.62 - Step 5: Solve for x
x = 443,850,922,384.62/764,715.76 - Step 6: Final answer
x = 580,412.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.