Finding the Fourth Proportional to 1,330,579.18, 1,836,199.96 and 718,731.92
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Solution
The fourth proportional to 1,330,579.18, 1,836,199.96 and 718,731.92 is: 991,850.42
Step by Step Solution
- Step 1: Write the proportion equation
1,330,579.18 : 1,836,199.96 = 718,731.92 : x - Step 2: Convert to fraction form
1,330,579.18/1,836,199.96 = 718,731.92/x - Step 3: Cross multiply
1,330,579.18x = 1,836,199.96 × 718,731.92 - Step 4: Simplify right side
1,330,579.18x = 1,319,735,522,754.72 - Step 5: Solve for x
x = 1,319,735,522,754.72/1,330,579.18 - Step 6: Final answer
x = 991,850.42
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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.