Finding the Fourth Proportional to 461,912.12, 638,050.73 and 371,608.19
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Solution
The fourth proportional to 461,912.12, 638,050.73 and 371,608.19 is: 513,311.65
Step by Step Solution
- Step 1: Write the proportion equation
461,912.12 : 638,050.73 = 371,608.19 : x - Step 2: Convert to fraction form
461,912.12/638,050.73 = 371,608.19/x - Step 3: Cross multiply
461,912.12x = 638,050.73 × 371,608.19 - Step 4: Simplify right side
461,912.12x = 237,104,871,855.18 - Step 5: Solve for x
x = 237,104,871,855.18/461,912.12 - Step 6: Final answer
x = 513,311.65
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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.