Finding the Fourth Proportional to 782,855.22, 1,080,321.84 and 460,586.06
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Solution
The fourth proportional to 782,855.22, 1,080,321.84 and 460,586.06 is: 635,597.96
Step by Step Solution
- Step 1: Write the proportion equation
782,855.22 : 1,080,321.84 = 460,586.06 : x - Step 2: Convert to fraction form
782,855.22/1,080,321.84 = 460,586.06/x - Step 3: Cross multiply
782,855.22x = 1,080,321.84 × 460,586.06 - Step 4: Simplify right side
782,855.22x = 497,581,179,817.55 - Step 5: Solve for x
x = 497,581,179,817.55/782,855.22 - Step 6: Final answer
x = 635,597.96
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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.