Finding the Fourth Proportional to 690,175.94, 1,034,783.62 and 305,716.07
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Solution
The fourth proportional to 690,175.94, 1,034,783.62 and 305,716.07 is: 458,361.36
Step by Step Solution
- Step 1: Write the proportion equation
690,175.94 : 1,034,783.62 = 305,716.07 : x - Step 2: Convert to fraction form
690,175.94/1,034,783.62 = 305,716.07/x - Step 3: Cross multiply
690,175.94x = 1,034,783.62 × 305,716.07 - Step 4: Simplify right side
690,175.94x = 316,349,983,429.44 - Step 5: Solve for x
x = 316,349,983,429.44/690,175.94 - Step 6: Final answer
x = 458,361.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.