Finding the Fourth Proportional to 1,378,383.43, 2,067,704.79 and 405,748.35
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Solution
The fourth proportional to 1,378,383.43, 2,067,704.79 and 405,748.35 is: 608,660.69
Step by Step Solution
- Step 1: Write the proportion equation
1,378,383.43 : 2,067,704.79 = 405,748.35 : x - Step 2: Convert to fraction form
1,378,383.43/2,067,704.79 = 405,748.35/x - Step 3: Cross multiply
1,378,383.43x = 2,067,704.79 × 405,748.35 - Step 4: Simplify right side
1,378,383.43x = 838,967,816,105.05 - Step 5: Solve for x
x = 838,967,816,105.05/1,378,383.43 - Step 6: Final answer
x = 608,660.69
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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.