Finding the Fourth Proportional to 831,375.24, 1,245,794.38 and 432,145.68
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Solution
The fourth proportional to 831,375.24, 1,245,794.38 and 432,145.68 is: 647,559.17
Step by Step Solution
- Step 1: Write the proportion equation
831,375.24 : 1,245,794.38 = 432,145.68 : x - Step 2: Convert to fraction form
831,375.24/1,245,794.38 = 432,145.68/x - Step 3: Cross multiply
831,375.24x = 1,245,794.38 × 432,145.68 - Step 4: Simplify right side
831,375.24x = 538,364,659,485.28 - Step 5: Solve for x
x = 538,364,659,485.28/831,375.24 - Step 6: Final answer
x = 647,559.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.