Finding the Fourth Proportional to 919,668.38, 1,379,486.64 and 413,871.44
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Solution
The fourth proportional to 919,668.38, 1,379,486.64 and 413,871.44 is: 620,799.99
Step by Step Solution
- Step 1: Write the proportion equation
919,668.38 : 1,379,486.64 = 413,871.44 : x - Step 2: Convert to fraction form
919,668.38/1,379,486.64 = 413,871.44/x - Step 3: Cross multiply
919,668.38x = 1,379,486.64 × 413,871.44 - Step 4: Simplify right side
919,668.38x = 570,930,122,157.56 - Step 5: Solve for x
x = 570,930,122,157.56/919,668.38 - Step 6: Final answer
x = 620,799.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.