Finding the Fourth Proportional to 756,644.36, 1,044,180.79 and 412,480.49
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Solution
The fourth proportional to 756,644.36, 1,044,180.79 and 412,480.49 is: 569,229.38
Step by Step Solution
- Step 1: Write the proportion equation
756,644.36 : 1,044,180.79 = 412,480.49 : x - Step 2: Convert to fraction form
756,644.36/1,044,180.79 = 412,480.49/x - Step 3: Cross multiply
756,644.36x = 1,044,180.79 × 412,480.49 - Step 4: Simplify right side
756,644.36x = 430,704,197,655.68 - Step 5: Solve for x
x = 430,704,197,655.68/756,644.36 - Step 6: Final answer
x = 569,229.38
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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.