Finding the Fourth Proportional to 1,019,640.97, 1,528,567.21 and 388,134.73
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Solution
The fourth proportional to 1,019,640.97, 1,528,567.21 and 388,134.73 is: 581,861.69
Step by Step Solution
- Step 1: Write the proportion equation
1,019,640.97 : 1,528,567.21 = 388,134.73 : x - Step 2: Convert to fraction form
1,019,640.97/1,528,567.21 = 388,134.73/x - Step 3: Cross multiply
1,019,640.97x = 1,528,567.21 × 388,134.73 - Step 4: Simplify right side
1,019,640.97x = 593,290,021,340.20 - Step 5: Solve for x
x = 593,290,021,340.20/1,019,640.97 - Step 6: Final answer
x = 581,861.69
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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.