Finding the Fourth Proportional to 379,703.09, 523,984.55 and 207,621.63
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Solution
The fourth proportional to 379,703.09, 523,984.55 and 207,621.63 is: 286,514.72
Step by Step Solution
- Step 1: Write the proportion equation
379,703.09 : 523,984.55 = 207,621.63 : x - Step 2: Convert to fraction form
379,703.09/523,984.55 = 207,621.63/x - Step 3: Cross multiply
379,703.09x = 523,984.55 × 207,621.63 - Step 4: Simplify right side
379,703.09x = 108,790,525,327.71 - Step 5: Solve for x
x = 108,790,525,327.71/379,703.09 - Step 6: Final answer
x = 286,514.72
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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.