Finding the Fourth Proportional to 485,944.19, 670,736.36 and 282,060.79
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Solution
The fourth proportional to 485,944.19, 670,736.36 and 282,060.79 is: 389,321.31
Step by Step Solution
- Step 1: Write the proportion equation
485,944.19 : 670,736.36 = 282,060.79 : x - Step 2: Convert to fraction form
485,944.19/670,736.36 = 282,060.79/x - Step 3: Cross multiply
485,944.19x = 670,736.36 × 282,060.79 - Step 4: Simplify right side
485,944.19x = 189,188,424,496.18 - Step 5: Solve for x
x = 189,188,424,496.18/485,944.19 - Step 6: Final answer
x = 389,321.31
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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.