Finding the Fourth Proportional to 454,351.20, 627,162.12 and 311,583.84
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Solution
The fourth proportional to 454,351.20, 627,162.12 and 311,583.84 is: 430,093.68
Step by Step Solution
- Step 1: Write the proportion equation
454,351.20 : 627,162.12 = 311,583.84 : x - Step 2: Convert to fraction form
454,351.20/627,162.12 = 311,583.84/x - Step 3: Cross multiply
454,351.20x = 627,162.12 × 311,583.84 - Step 4: Simplify right side
454,351.20x = 195,413,581,652.14 - Step 5: Solve for x
x = 195,413,581,652.14/454,351.20 - Step 6: Final answer
x = 430,093.68
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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.