Finding the Fourth Proportional to 324,863.20, 486,646.80 and 285,896.80
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Solution
The fourth proportional to 324,863.20, 486,646.80 and 285,896.80 is: 428,274.93
Step by Step Solution
- Step 1: Write the proportion equation
324,863.20 : 486,646.80 = 285,896.80 : x - Step 2: Convert to fraction form
324,863.20/486,646.80 = 285,896.80/x - Step 3: Cross multiply
324,863.20x = 486,646.80 × 285,896.80 - Step 4: Simplify right side
324,863.20x = 139,130,762,850.24 - Step 5: Solve for x
x = 139,130,762,850.24/324,863.20 - Step 6: Final answer
x = 428,274.93
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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.