Finding the Fourth Proportional to 905,643.18, 1,358,709.84 and 306,604.44
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Solution
The fourth proportional to 905,643.18, 1,358,709.84 and 306,604.44 is: 459,989.63
Step by Step Solution
- Step 1: Write the proportion equation
905,643.18 : 1,358,709.84 = 306,604.44 : x - Step 2: Convert to fraction form
905,643.18/1,358,709.84 = 306,604.44/x - Step 3: Cross multiply
905,643.18x = 1,358,709.84 × 306,604.44 - Step 4: Simplify right side
905,643.18x = 416,586,469,615.69 - Step 5: Solve for x
x = 416,586,469,615.69/905,643.18 - Step 6: Final answer
x = 459,989.63
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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.