Finding the Fourth Proportional to 392,361.80, 588,542.70 and 313,629.80
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Solution
The fourth proportional to 392,361.80, 588,542.70 and 313,629.80 is: 470,444.70
Step by Step Solution
- Step 1: Write the proportion equation
392,361.80 : 588,542.70 = 313,629.80 : x - Step 2: Convert to fraction form
392,361.80/588,542.70 = 313,629.80/x - Step 3: Cross multiply
392,361.80x = 588,542.70 × 313,629.80 - Step 4: Simplify right side
392,361.80x = 184,584,529,292.46 - Step 5: Solve for x
x = 184,584,529,292.46/392,361.80 - Step 6: Final answer
x = 470,444.70
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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.