Finding the Fourth Proportional to 324,113.60, 486,607.80 and 257,628.80
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Solution
The fourth proportional to 324,113.60, 486,607.80 and 257,628.80 is: 386,790.88
Step by Step Solution
- Step 1: Write the proportion equation
324,113.60 : 486,607.80 = 257,628.80 : x - Step 2: Convert to fraction form
324,113.60/486,607.80 = 257,628.80/x - Step 3: Cross multiply
324,113.60x = 486,607.80 × 257,628.80 - Step 4: Simplify right side
324,113.60x = 125,364,183,584.64 - Step 5: Solve for x
x = 125,364,183,584.64/324,113.60 - Step 6: Final answer
x = 386,790.88
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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.