Finding the Fourth Proportional to 744,687, 1,027,668.06 and 405,157.68
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Solution
The fourth proportional to 744,687, 1,027,668.06 and 405,157.68 is: 559,117.60
Step by Step Solution
- Step 1: Write the proportion equation
744,687 : 1,027,668.06 = 405,157.68 : x - Step 2: Convert to fraction form
744,687/1,027,668.06 = 405,157.68/x - Step 3: Cross multiply
744,687x = 1,027,668.06 × 405,157.68 - Step 4: Simplify right side
744,687x = 416,367,606,999.70 - Step 5: Solve for x
x = 416,367,606,999.70/744,687 - Step 6: Final answer
x = 559,117.60
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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.