Finding the Fourth Proportional to 385,863.73, 578,817.47 and 119,662.09
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Solution
The fourth proportional to 385,863.73, 578,817.47 and 119,662.09 is: 179,499.92
Step by Step Solution
- Step 1: Write the proportion equation
385,863.73 : 578,817.47 = 119,662.09 : x - Step 2: Convert to fraction form
385,863.73/578,817.47 = 119,662.09/x - Step 3: Cross multiply
385,863.73x = 578,817.47 × 119,662.09 - Step 4: Simplify right side
385,863.73x = 69,262,508,188.71 - Step 5: Solve for x
x = 69,262,508,188.71/385,863.73 - Step 6: Final answer
x = 179,499.92
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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.