Finding the Fourth Proportional to 3,908,571, 5,393,197.98 and 2,457,238.20
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Solution
The fourth proportional to 3,908,571, 5,393,197.98 and 2,457,238.20 is: 3,390,592.65
Step by Step Solution
- Step 1: Write the proportion equation
3,908,571 : 5,393,197.98 = 2,457,238.20 : x - Step 2: Convert to fraction form
3,908,571/5,393,197.98 = 2,457,238.20/x - Step 3: Cross multiply
3,908,571x = 5,393,197.98 × 2,457,238.20 - Step 4: Simplify right side
3,908,571x = 13,252,372,096,618.84 - Step 5: Solve for x
x = 13,252,372,096,618.84/3,908,571 - Step 6: Final answer
x = 3,390,592.65
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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.