Finding the Fourth Proportional to 2,988,393.12, 4,482,620.28 and 858,471.84
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Solution
The fourth proportional to 2,988,393.12, 4,482,620.28 and 858,471.84 is: 1,287,716.55
Step by Step Solution
- Step 1: Write the proportion equation
2,988,393.12 : 4,482,620.28 = 858,471.84 : x - Step 2: Convert to fraction form
2,988,393.12/4,482,620.28 = 858,471.84/x - Step 3: Cross multiply
2,988,393.12x = 4,482,620.28 × 858,471.84 - Step 4: Simplify right side
2,988,393.12x = 3,848,203,279,792.92 - Step 5: Solve for x
x = 3,848,203,279,792.92/2,988,393.12 - Step 6: Final answer
x = 1,287,716.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.