Finding the Fourth Proportional to 629,431.36, 868,604.34 and 342,953.80
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Solution
The fourth proportional to 629,431.36, 868,604.34 and 342,953.80 is: 473,270.28
Step by Step Solution
- Step 1: Write the proportion equation
629,431.36 : 868,604.34 = 342,953.80 : x - Step 2: Convert to fraction form
629,431.36/868,604.34 = 342,953.80/x - Step 3: Cross multiply
629,431.36x = 868,604.34 × 342,953.80 - Step 4: Simplify right side
629,431.36x = 297,891,159,099.49 - Step 5: Solve for x
x = 297,891,159,099.49/629,431.36 - Step 6: Final answer
x = 473,270.28
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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.