Finding the Fourth Proportional to 1,456,122.20, 2,183,664.90 and 657,786.20
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Solution
The fourth proportional to 1,456,122.20, 2,183,664.90 and 657,786.20 is: 986,445.12
Step by Step Solution
- Step 1: Write the proportion equation
1,456,122.20 : 2,183,664.90 = 657,786.20 : x - Step 2: Convert to fraction form
1,456,122.20/2,183,664.90 = 657,786.20/x - Step 3: Cross multiply
1,456,122.20x = 2,183,664.90 × 657,786.20 - Step 4: Simplify right side
1,456,122.20x = 1,436,384,636,644.38 - Step 5: Solve for x
x = 1,436,384,636,644.38/1,456,122.20 - Step 6: Final answer
x = 986,445.12
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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.