Finding the Fourth Proportional to 932,481.21, 1,286,135.29 and 642,184.98
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Solution
The fourth proportional to 932,481.21, 1,286,135.29 and 642,184.98 is: 885,740.92
Step by Step Solution
- Step 1: Write the proportion equation
932,481.21 : 1,286,135.29 = 642,184.98 : x - Step 2: Convert to fraction form
932,481.21/1,286,135.29 = 642,184.98/x - Step 3: Cross multiply
932,481.21x = 1,286,135.29 × 642,184.98 - Step 4: Simplify right side
932,481.21x = 825,936,770,511.29 - Step 5: Solve for x
x = 825,936,770,511.29/932,481.21 - Step 6: Final answer
x = 885,740.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.