Finding the Fourth Proportional to 843,137.28, 1,265,203.80 and 311,029.92
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Solution
The fourth proportional to 843,137.28, 1,265,203.80 and 311,029.92 is: 466,728.55
Step by Step Solution
- Step 1: Write the proportion equation
843,137.28 : 1,265,203.80 = 311,029.92 : x - Step 2: Convert to fraction form
843,137.28/1,265,203.80 = 311,029.92/x - Step 3: Cross multiply
843,137.28x = 1,265,203.80 × 311,029.92 - Step 4: Simplify right side
843,137.28x = 393,516,236,697.70 - Step 5: Solve for x
x = 393,516,236,697.70/843,137.28 - Step 6: Final answer
x = 466,728.55
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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.