Finding the Fourth Proportional to 1,031,129.40, 1,546,912.80 and 311,497.05
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Solution
The fourth proportional to 1,031,129.40, 1,546,912.80 and 311,497.05 is: 467,311.64
Step by Step Solution
- Step 1: Write the proportion equation
1,031,129.40 : 1,546,912.80 = 311,497.05 : x - Step 2: Convert to fraction form
1,031,129.40/1,546,912.80 = 311,497.05/x - Step 3: Cross multiply
1,031,129.40x = 1,546,912.80 × 311,497.05 - Step 4: Simplify right side
1,031,129.40x = 481,858,773,807.24 - Step 5: Solve for x
x = 481,858,773,807.24/1,031,129.40 - Step 6: Final answer
x = 467,311.64
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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.