Finding the Fourth Proportional to 4,256,459.20, 6,379,504.80 and 1,855,230.40
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Solution
The fourth proportional to 4,256,459.20, 6,379,504.80 and 1,855,230.40 is: 2,780,586.09
Step by Step Solution
- Step 1: Write the proportion equation
4,256,459.20 : 6,379,504.80 = 1,855,230.40 : x - Step 2: Convert to fraction form
4,256,459.20/6,379,504.80 = 1,855,230.40/x - Step 3: Cross multiply
4,256,459.20x = 6,379,504.80 × 1,855,230.40 - Step 4: Simplify right side
4,256,459.20x = 11,835,451,241,905.92 - Step 5: Solve for x
x = 11,835,451,241,905.92/4,256,459.20 - Step 6: Final answer
x = 2,780,586.09
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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.