Finding the Fourth Proportional to 716,395.14, 988,586.19 and 394,053.21
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Solution
The fourth proportional to 716,395.14, 988,586.19 and 394,053.21 is: 543,771.92
Step by Step Solution
- Step 1: Write the proportion equation
716,395.14 : 988,586.19 = 394,053.21 : x - Step 2: Convert to fraction form
716,395.14/988,586.19 = 394,053.21/x - Step 3: Cross multiply
716,395.14x = 988,586.19 × 394,053.21 - Step 4: Simplify right side
716,395.14x = 389,555,561,531.17 - Step 5: Solve for x
x = 389,555,561,531.17/716,395.14 - Step 6: Final answer
x = 543,771.92
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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.