Finding the Fourth Proportional to 448,446.64, 618,475.62 and 378,936.48
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Solution
The fourth proportional to 448,446.64, 618,475.62 and 378,936.48 is: 522,610.62
Step by Step Solution
- Step 1: Write the proportion equation
448,446.64 : 618,475.62 = 378,936.48 : x - Step 2: Convert to fraction form
448,446.64/618,475.62 = 378,936.48/x - Step 3: Cross multiply
448,446.64x = 618,475.62 × 378,936.48 - Step 4: Simplify right side
448,446.64x = 234,362,974,408.62 - Step 5: Solve for x
x = 234,362,974,408.62/448,446.64 - Step 6: Final answer
x = 522,610.62
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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.