Finding the Fourth Proportional to 631,368.51, 871,231.39 and 355,771.23
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Solution
The fourth proportional to 631,368.51, 871,231.39 and 355,771.23 is: 490,932.09
Step by Step Solution
- Step 1: Write the proportion equation
631,368.51 : 871,231.39 = 355,771.23 : x - Step 2: Convert to fraction form
631,368.51/871,231.39 = 355,771.23/x - Step 3: Cross multiply
631,368.51x = 871,231.39 × 355,771.23 - Step 4: Simplify right side
631,368.51x = 309,959,063,234.91 - Step 5: Solve for x
x = 309,959,063,234.91/631,368.51 - Step 6: Final answer
x = 490,932.09
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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.