Finding the Fourth Proportional to 3,624,388.40, 5,440,729.80 and 2,129,322.80
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Solution
The fourth proportional to 3,624,388.40, 5,440,729.80 and 2,129,322.80 is: 3,196,420.67
Step by Step Solution
- Step 1: Write the proportion equation
3,624,388.40 : 5,440,729.80 = 2,129,322.80 : x - Step 2: Convert to fraction form
3,624,388.40/5,440,729.80 = 2,129,322.80/x - Step 3: Cross multiply
3,624,388.40x = 5,440,729.80 × 2,129,322.80 - Step 4: Simplify right side
3,624,388.40x = 11,585,070,011,779.44 - Step 5: Solve for x
x = 11,585,070,011,779.44/3,624,388.40 - Step 6: Final answer
x = 3,196,420.67
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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.