Finding the Fourth Proportional to 716,466.88, 988,724.27 and 394,170.07
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Solution
The fourth proportional to 716,466.88, 988,724.27 and 394,170.07 is: 543,954.68
Step by Step Solution
- Step 1: Write the proportion equation
716,466.88 : 988,724.27 = 394,170.07 : x - Step 2: Convert to fraction form
716,466.88/988,724.27 = 394,170.07/x - Step 3: Cross multiply
716,466.88x = 988,724.27 × 394,170.07 - Step 4: Simplify right side
716,466.88x = 389,725,514,716.60 - Step 5: Solve for x
x = 389,725,514,716.60/716,466.88 - Step 6: Final answer
x = 543,954.68
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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.