Finding the Fourth Proportional to 716,882.94, 989,324.82 and 394,606.62
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Solution
The fourth proportional to 716,882.94, 989,324.82 and 394,606.62 is: 544,571.65
Step by Step Solution
- Step 1: Write the proportion equation
716,882.94 : 989,324.82 = 394,606.62 : x - Step 2: Convert to fraction form
716,882.94/989,324.82 = 394,606.62/x - Step 3: Cross multiply
716,882.94x = 989,324.82 × 394,606.62 - Step 4: Simplify right side
716,882.94x = 390,394,123,302.31 - Step 5: Solve for x
x = 390,394,123,302.31/716,882.94 - Step 6: Final answer
x = 544,571.65
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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.