Finding the Fourth Proportional to 878,382.12, 1,316,977.02 and 279,163.56
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Solution
The fourth proportional to 878,382.12, 1,316,977.02 and 279,163.56 is: 418,555.87
Step by Step Solution
- Step 1: Write the proportion equation
878,382.12 : 1,316,977.02 = 279,163.56 : x - Step 2: Convert to fraction form
878,382.12/1,316,977.02 = 279,163.56/x - Step 3: Cross multiply
878,382.12x = 1,316,977.02 × 279,163.56 - Step 4: Simplify right side
878,382.12x = 367,651,993,341.39 - Step 5: Solve for x
x = 367,651,993,341.39/878,382.12 - Step 6: Final answer
x = 418,555.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.