Finding the Fourth Proportional to 631,369.01, 871,232.09 and 355,771.74
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Solution
The fourth proportional to 631,369.01, 871,232.09 and 355,771.74 is: 490,932.80
Step by Step Solution
- Step 1: Write the proportion equation
631,369.01 : 871,232.09 = 355,771.74 : x - Step 2: Convert to fraction form
631,369.01/871,232.09 = 355,771.74/x - Step 3: Cross multiply
631,369.01x = 871,232.09 × 355,771.74 - Step 4: Simplify right side
631,369.01x = 309,959,754,824.28 - Step 5: Solve for x
x = 309,959,754,824.28/631,369.01 - Step 6: Final answer
x = 490,932.80
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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.