Finding the Fourth Proportional to 658,163.80, 987,278.10 and 343,235.80
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Solution
The fourth proportional to 658,163.80, 987,278.10 and 343,235.80 is: 514,870.60
Step by Step Solution
- Step 1: Write the proportion equation
658,163.80 : 987,278.10 = 343,235.80 : x - Step 2: Convert to fraction form
658,163.80/987,278.10 = 343,235.80/x - Step 3: Cross multiply
658,163.80x = 987,278.10 × 343,235.80 - Step 4: Simplify right side
658,163.80x = 338,869,188,475.98 - Step 5: Solve for x
x = 338,869,188,475.98/658,163.80 - Step 6: Final answer
x = 514,870.60
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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.