Finding the Fourth Proportional to 811,912.63, 1,216,913.95 and 331,844.26
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Solution
The fourth proportional to 811,912.63, 1,216,913.95 and 331,844.26 is: 497,376.07
Step by Step Solution
- Step 1: Write the proportion equation
811,912.63 : 1,216,913.95 = 331,844.26 : x - Step 2: Convert to fraction form
811,912.63/1,216,913.95 = 331,844.26/x - Step 3: Cross multiply
811,912.63x = 1,216,913.95 × 331,844.26 - Step 4: Simplify right side
811,912.63x = 403,825,909,221.43 - Step 5: Solve for x
x = 403,825,909,221.43/811,912.63 - Step 6: Final answer
x = 497,376.07
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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.