Finding the Fourth Proportional to 442,907.70, 664,361.55 and 307,605.30
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Solution
The fourth proportional to 442,907.70, 664,361.55 and 307,605.30 is: 461,407.95
Step by Step Solution
- Step 1: Write the proportion equation
442,907.70 : 664,361.55 = 307,605.30 : x - Step 2: Convert to fraction form
442,907.70/664,361.55 = 307,605.30/x - Step 3: Cross multiply
442,907.70x = 664,361.55 × 307,605.30 - Step 4: Simplify right side
442,907.70x = 204,361,133,896.22 - Step 5: Solve for x
x = 204,361,133,896.22/442,907.70 - Step 6: Final answer
x = 461,407.95
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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.