Finding the Fourth Proportional to 857,704.76, 1,286,064.92 and 324,885.96
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Solution
The fourth proportional to 857,704.76, 1,286,064.92 and 324,885.96 is: 487,142.49
Step by Step Solution
- Step 1: Write the proportion equation
857,704.76 : 1,286,064.92 = 324,885.96 : x - Step 2: Convert to fraction form
857,704.76/1,286,064.92 = 324,885.96/x - Step 3: Cross multiply
857,704.76x = 1,286,064.92 × 324,885.96 - Step 4: Simplify right side
857,704.76x = 417,824,436,156.52 - Step 5: Solve for x
x = 417,824,436,156.52/857,704.76 - Step 6: Final answer
x = 487,142.49
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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.