Finding the Fourth Proportional to 412,361.76, 569,073.12 and 393,466.08
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Solution
The fourth proportional to 412,361.76, 569,073.12 and 393,466.08 is: 542,996.45
Step by Step Solution
- Step 1: Write the proportion equation
412,361.76 : 569,073.12 = 393,466.08 : x - Step 2: Convert to fraction form
412,361.76/569,073.12 = 393,466.08/x - Step 3: Cross multiply
412,361.76x = 569,073.12 × 393,466.08 - Step 4: Simplify right side
412,361.76x = 223,910,969,759.77 - Step 5: Solve for x
x = 223,910,969,759.77/412,361.76 - Step 6: Final answer
x = 542,996.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.