Finding the Fourth Proportional to 618,414.26, 855,129.57 and 490,868.42
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Solution
The fourth proportional to 618,414.26, 855,129.57 and 490,868.42 is: 678,762.00
Step by Step Solution
- Step 1: Write the proportion equation
618,414.26 : 855,129.57 = 490,868.42 : x - Step 2: Convert to fraction form
618,414.26/855,129.57 = 490,868.42/x - Step 3: Cross multiply
618,414.26x = 855,129.57 × 490,868.42 - Step 4: Simplify right side
618,414.26x = 419,756,100,921.18 - Step 5: Solve for x
x = 419,756,100,921.18/618,414.26 - Step 6: Final answer
x = 678,762.00
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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.