Finding the Fourth Proportional to 876,791.75, 1,209,972.62 and 474,383.75
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Solution
The fourth proportional to 876,791.75, 1,209,972.62 and 474,383.75 is: 654,649.58
Step by Step Solution
- Step 1: Write the proportion equation
876,791.75 : 1,209,972.62 = 474,383.75 : x - Step 2: Convert to fraction form
876,791.75/1,209,972.62 = 474,383.75/x - Step 3: Cross multiply
876,791.75x = 1,209,972.62 × 474,383.75 - Step 4: Simplify right side
876,791.75x = 573,991,346,501.01 - Step 5: Solve for x
x = 573,991,346,501.01/876,791.75 - Step 6: Final answer
x = 654,649.58
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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.