Finding the Fourth Proportional to 1,392,287.36, 2,087,409.60 and 445,112.96
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Solution
The fourth proportional to 1,392,287.36, 2,087,409.60 and 445,112.96 is: 667,342.89
Step by Step Solution
- Step 1: Write the proportion equation
1,392,287.36 : 2,087,409.60 = 445,112.96 : x - Step 2: Convert to fraction form
1,392,287.36/2,087,409.60 = 445,112.96/x - Step 3: Cross multiply
1,392,287.36x = 2,087,409.60 × 445,112.96 - Step 4: Simplify right side
1,392,287.36x = 929,133,065,788.42 - Step 5: Solve for x
x = 929,133,065,788.42/1,392,287.36 - Step 6: Final answer
x = 667,342.89
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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.