Finding the Fourth Proportional to 631,651.44, 871,642.26 and 345,173.88
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Solution
The fourth proportional to 631,651.44, 871,642.26 and 345,173.88 is: 476,319.88
Step by Step Solution
- Step 1: Write the proportion equation
631,651.44 : 871,642.26 = 345,173.88 : x - Step 2: Convert to fraction form
631,651.44/871,642.26 = 345,173.88/x - Step 3: Cross multiply
631,651.44x = 871,642.26 × 345,173.88 - Step 4: Simplify right side
631,651.44x = 300,868,140,856.17 - Step 5: Solve for x
x = 300,868,140,856.17/631,651.44 - Step 6: Final answer
x = 476,319.88
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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.