Finding the Fourth Proportional to 831,274.44, 1,246,524.12 and 431,808
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Solution
The fourth proportional to 831,274.44, 1,246,524.12 and 431,808 is: 647,510.69
Step by Step Solution
- Step 1: Write the proportion equation
831,274.44 : 1,246,524.12 = 431,808 : x - Step 2: Convert to fraction form
831,274.44/1,246,524.12 = 431,808/x - Step 3: Cross multiply
831,274.44x = 1,246,524.12 × 431,808 - Step 4: Simplify right side
831,274.44x = 538,259,087,208.96 - Step 5: Solve for x
x = 538,259,087,208.96/831,274.44 - Step 6: Final answer
x = 647,510.69
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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.