Finding the Fourth Proportional to 638,558.21, 881,207.02 and 348,185.36
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Solution
The fourth proportional to 638,558.21, 881,207.02 and 348,185.36 is: 480,493.99
Step by Step Solution
- Step 1: Write the proportion equation
638,558.21 : 881,207.02 = 348,185.36 : x - Step 2: Convert to fraction form
638,558.21/881,207.02 = 348,185.36/x - Step 3: Cross multiply
638,558.21x = 881,207.02 × 348,185.36 - Step 4: Simplify right side
638,558.21x = 306,823,383,493.23 - Step 5: Solve for x
x = 306,823,383,493.23/638,558.21 - Step 6: Final answer
x = 480,493.99
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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.