Finding the Fourth Proportional to 3,758,880.12, 5,638,320.18 and 918,958.56
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Solution
The fourth proportional to 3,758,880.12, 5,638,320.18 and 918,958.56 is: 1,378,437.84
Step by Step Solution
- Step 1: Write the proportion equation
3,758,880.12 : 5,638,320.18 = 918,958.56 : x - Step 2: Convert to fraction form
3,758,880.12/5,638,320.18 = 918,958.56/x - Step 3: Cross multiply
3,758,880.12x = 5,638,320.18 × 918,958.56 - Step 4: Simplify right side
3,758,880.12x = 5,181,382,593,431.74 - Step 5: Solve for x
x = 5,181,382,593,431.74/3,758,880.12 - Step 6: Final answer
x = 1,378,437.84
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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.