Finding the Fourth Proportional to 1,409,361.20, 2,114,112.84 and 398,555.84
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Solution
The fourth proportional to 1,409,361.20, 2,114,112.84 and 398,555.84 is: 597,853.85
Step by Step Solution
- Step 1: Write the proportion equation
1,409,361.20 : 2,114,112.84 = 398,555.84 : x - Step 2: Convert to fraction form
1,409,361.20/2,114,112.84 = 398,555.84/x - Step 3: Cross multiply
1,409,361.20x = 2,114,112.84 × 398,555.84 - Step 4: Simplify right side
1,409,361.20x = 842,592,018,800.99 - Step 5: Solve for x
x = 842,592,018,800.99/1,409,361.20 - Step 6: Final answer
x = 597,853.85
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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.