Finding the Fourth Proportional to 485,133.36, 669,761.88 and 324,260.88
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Solution
The fourth proportional to 485,133.36, 669,761.88 and 324,260.88 is: 447,665.72
Step by Step Solution
- Step 1: Write the proportion equation
485,133.36 : 669,761.88 = 324,260.88 : x - Step 2: Convert to fraction form
485,133.36/669,761.88 = 324,260.88/x - Step 3: Cross multiply
485,133.36x = 669,761.88 × 324,260.88 - Step 4: Simplify right side
485,133.36x = 217,177,576,599.25 - Step 5: Solve for x
x = 217,177,576,599.25/485,133.36 - Step 6: Final answer
x = 447,665.72
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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.