Finding the Fourth Proportional to 415,114.20, 572,687.64 and 306,478.44
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Solution
The fourth proportional to 415,114.20, 572,687.64 and 306,478.44 is: 422,814.77
Step by Step Solution
- Step 1: Write the proportion equation
415,114.20 : 572,687.64 = 306,478.44 : x - Step 2: Convert to fraction form
415,114.20/572,687.64 = 306,478.44/x - Step 3: Cross multiply
415,114.20x = 572,687.64 × 306,478.44 - Step 4: Simplify right side
415,114.20x = 175,516,414,514.48 - Step 5: Solve for x
x = 175,516,414,514.48/415,114.20 - Step 6: Final answer
x = 422,814.77
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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.