Finding the Fourth Proportional to 744,693.16, 1,027,687.08 and 405,161.68
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Solution
The fourth proportional to 744,693.16, 1,027,687.08 and 405,161.68 is: 559,128.84
Step by Step Solution
- Step 1: Write the proportion equation
744,693.16 : 1,027,687.08 = 405,161.68 : x - Step 2: Convert to fraction form
744,693.16/1,027,687.08 = 405,161.68/x - Step 3: Cross multiply
744,693.16x = 1,027,687.08 × 405,161.68 - Step 4: Simplify right side
744,693.16x = 416,379,423,847.09 - Step 5: Solve for x
x = 416,379,423,847.09/744,693.16 - Step 6: Final answer
x = 559,128.84
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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.