Finding the Fourth Proportional to 3,825,031.62, 5,278,659.78 and 2,106,213.65
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Solution
The fourth proportional to 3,825,031.62, 5,278,659.78 and 2,106,213.65 is: 2,906,638.79
Step by Step Solution
- Step 1: Write the proportion equation
3,825,031.62 : 5,278,659.78 = 2,106,213.65 : x - Step 2: Convert to fraction form
3,825,031.62/5,278,659.78 = 2,106,213.65/x - Step 3: Cross multiply
3,825,031.62x = 5,278,659.78 × 2,106,213.65 - Step 4: Simplify right side
3,825,031.62x = 11,117,985,282,342.00 - Step 5: Solve for x
x = 11,117,985,282,342.00/3,825,031.62 - Step 6: Final answer
x = 2,906,638.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.