Finding the Fourth Proportional to 3,896,405.40, 5,845,529.70 and 1,237,013.40
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Solution
The fourth proportional to 3,896,405.40, 5,845,529.70 and 1,237,013.40 is: 1,855,812.69
Step by Step Solution
- Step 1: Write the proportion equation
3,896,405.40 : 5,845,529.70 = 1,237,013.40 : x - Step 2: Convert to fraction form
3,896,405.40/5,845,529.70 = 1,237,013.40/x - Step 3: Cross multiply
3,896,405.40x = 5,845,529.70 × 1,237,013.40 - Step 4: Simplify right side
3,896,405.40x = 7,230,998,568,997.98 - Step 5: Solve for x
x = 7,230,998,568,997.98/3,896,405.40 - Step 6: Final answer
x = 1,855,812.69
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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.