Finding the Fourth Proportional to 643,651.44, 965,790.78 and 264,686.07
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Solution
The fourth proportional to 643,651.44, 965,790.78 and 264,686.07 is: 397,158.07
Step by Step Solution
- Step 1: Write the proportion equation
643,651.44 : 965,790.78 = 264,686.07 : x - Step 2: Convert to fraction form
643,651.44/965,790.78 = 264,686.07/x - Step 3: Cross multiply
643,651.44x = 965,790.78 × 264,686.07 - Step 4: Simplify right side
643,651.44x = 255,631,366,000.44 - Step 5: Solve for x
x = 255,631,366,000.44/643,651.44 - Step 6: Final answer
x = 397,158.07
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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.