Finding the Fourth Proportional to 880,813.64, 1,215,608.14 and 493,694.81
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Solution
The fourth proportional to 880,813.64, 1,215,608.14 and 493,694.81 is: 681,346.66
Step by Step Solution
- Step 1: Write the proportion equation
880,813.64 : 1,215,608.14 = 493,694.81 : x - Step 2: Convert to fraction form
880,813.64/1,215,608.14 = 493,694.81/x - Step 3: Cross multiply
880,813.64x = 1,215,608.14 × 493,694.81 - Step 4: Simplify right side
880,813.64x = 600,139,431,516.54 - Step 5: Solve for x
x = 600,139,431,516.54/880,813.64 - Step 6: Final answer
x = 681,346.66
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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.