Finding the Fourth Proportional to 624,469.11, 861,788.24 and 382,704.98
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Solution
The fourth proportional to 624,469.11, 861,788.24 and 382,704.98 is: 528,145.65
Step by Step Solution
- Step 1: Write the proportion equation
624,469.11 : 861,788.24 = 382,704.98 : x - Step 2: Convert to fraction form
624,469.11/861,788.24 = 382,704.98/x - Step 3: Cross multiply
624,469.11x = 861,788.24 × 382,704.98 - Step 4: Simplify right side
624,469.11x = 329,810,644,930.97 - Step 5: Solve for x
x = 329,810,644,930.97/624,469.11 - Step 6: Final answer
x = 528,145.65
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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.