Finding the Fourth Proportional to 2,912,163.80, 4,367,468.10 and 890,403.80
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Solution
The fourth proportional to 2,912,163.80, 4,367,468.10 and 890,403.80 is: 1,335,367.95
Step by Step Solution
- Step 1: Write the proportion equation
2,912,163.80 : 4,367,468.10 = 890,403.80 : x - Step 2: Convert to fraction form
2,912,163.80/4,367,468.10 = 890,403.80/x - Step 3: Cross multiply
2,912,163.80x = 4,367,468.10 × 890,403.80 - Step 4: Simplify right side
2,912,163.80x = 3,888,810,192,618.78 - Step 5: Solve for x
x = 3,888,810,192,618.78/2,912,163.80 - Step 6: Final answer
x = 1,335,367.95
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1.5x scale
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.