Finding the Fourth Proportional to 3,449,621.70, 4,725,998.64 and 3,320,330.99
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Solution
The fourth proportional to 3,449,621.70, 4,725,998.64 and 3,320,330.99 is: 4,548,869.73
Step by Step Solution
- Step 1: Write the proportion equation
3,449,621.70 : 4,725,998.64 = 3,320,330.99 : x - Step 2: Convert to fraction form
3,449,621.70/4,725,998.64 = 3,320,330.99/x - Step 3: Cross multiply
3,449,621.70x = 4,725,998.64 × 3,320,330.99 - Step 4: Simplify right side
3,449,621.70x = 15,691,879,719,459.86 - Step 5: Solve for x
x = 15,691,879,719,459.86/3,449,621.70 - Step 6: Final answer
x = 4,548,869.73
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.