Finding the Fourth Proportional to 4,192,738.92, 5,786,993.70 and 3,909,070.44
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Solution
The fourth proportional to 4,192,738.92, 5,786,993.70 and 3,909,070.44 is: 5,395,462.59
Step by Step Solution
- Step 1: Write the proportion equation
4,192,738.92 : 5,786,993.70 = 3,909,070.44 : x - Step 2: Convert to fraction form
4,192,738.92/5,786,993.70 = 3,909,070.44/x - Step 3: Cross multiply
4,192,738.92x = 5,786,993.70 × 3,909,070.44 - Step 4: Simplify right side
4,192,738.92x = 22,621,766,009,136.23 - Step 5: Solve for x
x = 22,621,766,009,136.23/4,192,738.92 - Step 6: Final answer
x = 5,395,462.59
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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.