Finding the Fourth Proportional to 412,936.26, 618,986.07 and 279,829.98
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Solution
The fourth proportional to 412,936.26, 618,986.07 and 279,829.98 is: 419,461.49
Step by Step Solution
- Step 1: Write the proportion equation
412,936.26 : 618,986.07 = 279,829.98 : x - Step 2: Convert to fraction form
412,936.26/618,986.07 = 279,829.98/x - Step 3: Cross multiply
412,936.26x = 618,986.07 × 279,829.98 - Step 4: Simplify right side
412,936.26x = 173,210,859,588.38 - Step 5: Solve for x
x = 173,210,859,588.38/412,936.26 - Step 6: Final answer
x = 419,461.49
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1.5x scale
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.