Finding the Fourth Proportional to 643,879.62, 965,228.12 and 222,861.06
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Solution
The fourth proportional to 643,879.62, 965,228.12 and 222,861.06 is: 334,086.92
Step by Step Solution
- Step 1: Write the proportion equation
643,879.62 : 965,228.12 = 222,861.06 : x - Step 2: Convert to fraction form
643,879.62/965,228.12 = 222,861.06/x - Step 3: Cross multiply
643,879.62x = 965,228.12 × 222,861.06 - Step 4: Simplify right side
643,879.62x = 215,111,761,965.01 - Step 5: Solve for x
x = 215,111,761,965.01/643,879.62 - Step 6: Final answer
x = 334,086.92
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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.