Finding the Fourth Proportional to 1,178,268.36, 1,626,021.12 and 668,981.56
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Solution
The fourth proportional to 1,178,268.36, 1,626,021.12 and 668,981.56 is: 923,200.68
Step by Step Solution
- Step 1: Write the proportion equation
1,178,268.36 : 1,626,021.12 = 668,981.56 : x - Step 2: Convert to fraction form
1,178,268.36/1,626,021.12 = 668,981.56/x - Step 3: Cross multiply
1,178,268.36x = 1,626,021.12 × 668,981.56 - Step 4: Simplify right side
1,178,268.36x = 1,087,778,145,450.55 - Step 5: Solve for x
x = 1,087,778,145,450.55/1,178,268.36 - Step 6: Final answer
x = 923,200.68
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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.