Finding the Fourth Proportional to 442,912.20, 664,368.30 and 307,609.80
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Solution
The fourth proportional to 442,912.20, 664,368.30 and 307,609.80 is: 461,414.70
Step by Step Solution
- Step 1: Write the proportion equation
442,912.20 : 664,368.30 = 307,609.80 : x - Step 2: Convert to fraction form
442,912.20/664,368.30 = 307,609.80/x - Step 3: Cross multiply
442,912.20x = 664,368.30 × 307,609.80 - Step 4: Simplify right side
442,912.20x = 204,366,199,889.34 - Step 5: Solve for x
x = 204,366,199,889.34/442,912.20 - Step 6: Final answer
x = 461,414.70
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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.