Finding the Fourth Proportional to 842,689.96, 1,162,912.26 and 460,716.84
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Solution
The fourth proportional to 842,689.96, 1,162,912.26 and 460,716.84 is: 635,789.30
Step by Step Solution
- Step 1: Write the proportion equation
842,689.96 : 1,162,912.26 = 460,716.84 : x - Step 2: Convert to fraction form
842,689.96/1,162,912.26 = 460,716.84/x - Step 3: Cross multiply
842,689.96x = 1,162,912.26 × 460,716.84 - Step 4: Simplify right side
842,689.96x = 535,773,261,624.46 - Step 5: Solve for x
x = 535,773,261,624.46/842,689.96 - Step 6: Final answer
x = 635,789.30
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1.5x scale
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.