Finding the Fourth Proportional to 921,391.24, 1,382,272.62 and 388,912.84
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Solution
The fourth proportional to 921,391.24, 1,382,272.62 and 388,912.84 is: 583,447.67
Step by Step Solution
- Step 1: Write the proportion equation
921,391.24 : 1,382,272.62 = 388,912.84 : x - Step 2: Convert to fraction form
921,391.24/1,382,272.62 = 388,912.84/x - Step 3: Cross multiply
921,391.24x = 1,382,272.62 × 388,912.84 - Step 4: Simplify right side
921,391.24x = 537,583,570,298.44 - Step 5: Solve for x
x = 537,583,570,298.44/921,391.24 - Step 6: Final answer
x = 583,447.67
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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.