Finding the Fourth Proportional to 764,676.86, 1,055,236.68 and 415,809.63
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Solution
The fourth proportional to 764,676.86, 1,055,236.68 and 415,809.63 is: 573,807.84
Step by Step Solution
- Step 1: Write the proportion equation
764,676.86 : 1,055,236.68 = 415,809.63 : x - Step 2: Convert to fraction form
764,676.86/1,055,236.68 = 415,809.63/x - Step 3: Cross multiply
764,676.86x = 1,055,236.68 × 415,809.63 - Step 4: Simplify right side
764,676.86x = 438,777,573,473.23 - Step 5: Solve for x
x = 438,777,573,473.23/764,676.86 - Step 6: Final answer
x = 573,807.84
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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.