Finding the Fourth Proportional to 756,435.92, 1,043,888.84 and 416,917.20
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Solution
The fourth proportional to 756,435.92, 1,043,888.84 and 416,917.20 is: 575,349.74
Step by Step Solution
- Step 1: Write the proportion equation
756,435.92 : 1,043,888.84 = 416,917.20 : x - Step 2: Convert to fraction form
756,435.92/1,043,888.84 = 416,917.20/x - Step 3: Cross multiply
756,435.92x = 1,043,888.84 × 416,917.20 - Step 4: Simplify right side
756,435.92x = 435,215,212,284.05 - Step 5: Solve for x
x = 435,215,212,284.05/756,435.92 - Step 6: Final answer
x = 575,349.74
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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.