Finding the Fourth Proportional to 690,473.36, 952,716.84 and 436,173.20
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Solution
The fourth proportional to 690,473.36, 952,716.84 and 436,173.20 is: 601,832.85
Step by Step Solution
- Step 1: Write the proportion equation
690,473.36 : 952,716.84 = 436,173.20 : x - Step 2: Convert to fraction form
690,473.36/952,716.84 = 436,173.20/x - Step 3: Cross multiply
690,473.36x = 952,716.84 × 436,173.20 - Step 4: Simplify right side
690,473.36x = 415,549,552,796.69 - Step 5: Solve for x
x = 415,549,552,796.69/690,473.36 - Step 6: Final answer
x = 601,832.85
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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.