Finding the Fourth Proportional to 1,287,022.05, 1,930,533.08 and 327,475.80
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Solution
The fourth proportional to 1,287,022.05, 1,930,533.08 and 327,475.80 is: 491,213.70
Step by Step Solution
- Step 1: Write the proportion equation
1,287,022.05 : 1,930,533.08 = 327,475.80 : x - Step 2: Convert to fraction form
1,287,022.05/1,930,533.08 = 327,475.80/x - Step 3: Cross multiply
1,287,022.05x = 1,930,533.08 × 327,475.80 - Step 4: Simplify right side
1,287,022.05x = 632,202,863,162.09 - Step 5: Solve for x
x = 632,202,863,162.09/1,287,022.05 - Step 6: Final answer
x = 491,213.70
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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.