Finding the Fourth Proportional to 407,019.63, 561,720.69 and 225,789.99
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Solution
The fourth proportional to 407,019.63, 561,720.69 and 225,789.99 is: 311,608.83
Step by Step Solution
- Step 1: Write the proportion equation
407,019.63 : 561,720.69 = 225,789.99 : x - Step 2: Convert to fraction form
407,019.63/561,720.69 = 225,789.99/x - Step 3: Cross multiply
407,019.63x = 561,720.69 × 225,789.99 - Step 4: Simplify right side
407,019.63x = 126,830,908,977.89 - Step 5: Solve for x
x = 126,830,908,977.89/407,019.63 - Step 6: Final answer
x = 311,608.83
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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.