Finding the Fourth Proportional to 3,802,543.21, 5,247,509.61 and 2,192,911.21
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Solution
The fourth proportional to 3,802,543.21, 5,247,509.61 and 2,192,911.21 is: 3,026,217.46
Step by Step Solution
- Step 1: Write the proportion equation
3,802,543.21 : 5,247,509.61 = 2,192,911.21 : x - Step 2: Convert to fraction form
3,802,543.21/5,247,509.61 = 2,192,911.21/x - Step 3: Cross multiply
3,802,543.21x = 5,247,509.61 × 2,192,911.21 - Step 4: Simplify right side
3,802,543.21x = 11,507,322,648,351.73 - Step 5: Solve for x
x = 11,507,322,648,351.73/3,802,543.21 - Step 6: Final answer
x = 3,026,217.46
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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.