Finding the Fourth Proportional to 1,456,121.70, 2,183,664.15 and 657,785.70
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Solution
The fourth proportional to 1,456,121.70, 2,183,664.15 and 657,785.70 is: 986,444.37
Step by Step Solution
- Step 1: Write the proportion equation
1,456,121.70 : 2,183,664.15 = 657,785.70 : x - Step 2: Convert to fraction form
1,456,121.70/2,183,664.15 = 657,785.70/x - Step 3: Cross multiply
1,456,121.70x = 2,183,664.15 × 657,785.70 - Step 4: Simplify right side
1,456,121.70x = 1,436,383,051,472.65 - Step 5: Solve for x
x = 1,436,383,051,472.65/1,456,121.70 - Step 6: Final answer
x = 986,444.37
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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.