Finding the Fourth Proportional to 3,407,964.40, 5,122,444.20 and 3,219,007.60
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Solution
The fourth proportional to 3,407,964.40, 5,122,444.20 and 3,219,007.60 is: 4,838,426.95
Step by Step Solution
- Step 1: Write the proportion equation
3,407,964.40 : 5,122,444.20 = 3,219,007.60 : x - Step 2: Convert to fraction form
3,407,964.40/5,122,444.20 = 3,219,007.60/x - Step 3: Cross multiply
3,407,964.40x = 5,122,444.20 × 3,219,007.60 - Step 4: Simplify right side
3,407,964.40x = 16,489,186,810,375.92 - Step 5: Solve for x
x = 16,489,186,810,375.92/3,407,964.40 - Step 6: Final answer
x = 4,838,426.95
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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.