Finding the Fourth Proportional to 681,431.24, 1,022,779.74 and 344,709.92
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Solution
The fourth proportional to 681,431.24, 1,022,779.74 and 344,709.92 is: 517,385.03
Step by Step Solution
- Step 1: Write the proportion equation
681,431.24 : 1,022,779.74 = 344,709.92 : x - Step 2: Convert to fraction form
681,431.24/1,022,779.74 = 344,709.92/x - Step 3: Cross multiply
681,431.24x = 1,022,779.74 × 344,709.92 - Step 4: Simplify right side
681,431.24x = 352,562,322,353.02 - Step 5: Solve for x
x = 352,562,322,353.02/681,431.24 - Step 6: Final answer
x = 517,385.03
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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.