Finding the Fourth Proportional to 465,451.87, 698,163.84 and 128,513.11
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Solution
The fourth proportional to 465,451.87, 698,163.84 and 128,513.11 is: 192,765.81
Step by Step Solution
- Step 1: Write the proportion equation
465,451.87 : 698,163.84 = 128,513.11 : x - Step 2: Convert to fraction form
465,451.87/698,163.84 = 128,513.11/x - Step 3: Cross multiply
465,451.87x = 698,163.84 × 128,513.11 - Step 4: Simplify right side
465,451.87x = 89,723,206,367.94 - Step 5: Solve for x
x = 89,723,206,367.94/465,451.87 - Step 6: Final answer
x = 192,765.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.