Finding the Fourth Proportional to 858,293.62, 1,287,484.17 and 289,695.49
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Solution
The fourth proportional to 858,293.62, 1,287,484.17 and 289,695.49 is: 434,557.99
Step by Step Solution
- Step 1: Write the proportion equation
858,293.62 : 1,287,484.17 = 289,695.49 : x - Step 2: Convert to fraction form
858,293.62/1,287,484.17 = 289,695.49/x - Step 3: Cross multiply
858,293.62x = 1,287,484.17 × 289,695.49 - Step 4: Simplify right side
858,293.62x = 372,978,353,190.33 - Step 5: Solve for x
x = 372,978,353,190.33/858,293.62 - Step 6: Final answer
x = 434,557.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.