Finding the Fourth Proportional to 642,195.60, 886,245.75 and 351,823.02
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Solution
The fourth proportional to 642,195.60, 886,245.75 and 351,823.02 is: 485,524.44
Step by Step Solution
- Step 1: Write the proportion equation
642,195.60 : 886,245.75 = 351,823.02 : x - Step 2: Convert to fraction form
642,195.60/886,245.75 = 351,823.02/x - Step 3: Cross multiply
642,195.60x = 886,245.75 × 351,823.02 - Step 4: Simplify right side
642,195.60x = 311,801,656,227.17 - Step 5: Solve for x
x = 311,801,656,227.17/642,195.60 - Step 6: Final answer
x = 485,524.44
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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.