Finding the Fourth Proportional to 858,138.80, 1,286,709.73 and 325,369.19
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Solution
The fourth proportional to 858,138.80, 1,286,709.73 and 325,369.19 is: 487,864.79
Step by Step Solution
- Step 1: Write the proportion equation
858,138.80 : 1,286,709.73 = 325,369.19 : x - Step 2: Convert to fraction form
858,138.80/1,286,709.73 = 325,369.19/x - Step 3: Cross multiply
858,138.80x = 1,286,709.73 × 325,369.19 - Step 4: Simplify right side
858,138.80x = 418,655,705,018.57 - Step 5: Solve for x
x = 418,655,705,018.57/858,138.80 - Step 6: Final answer
x = 487,864.79
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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.