Finding the Fourth Proportional to 679,208.10, 1,017,481.05 and 394,301.49
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Solution
The fourth proportional to 679,208.10, 1,017,481.05 and 394,301.49 is: 590,679.49
Step by Step Solution
- Step 1: Write the proportion equation
679,208.10 : 1,017,481.05 = 394,301.49 : x - Step 2: Convert to fraction form
679,208.10/1,017,481.05 = 394,301.49/x - Step 3: Cross multiply
679,208.10x = 1,017,481.05 × 394,301.49 - Step 4: Simplify right side
679,208.10x = 401,194,294,061.77 - Step 5: Solve for x
x = 401,194,294,061.77/679,208.10 - Step 6: Final answer
x = 590,679.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.