Finding the Fourth Proportional to 629,649.24, 868,934.16 and 343,187.88
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Solution
The fourth proportional to 629,649.24, 868,934.16 and 343,187.88 is: 473,609.20
Step by Step Solution
- Step 1: Write the proportion equation
629,649.24 : 868,934.16 = 343,187.88 : x - Step 2: Convert to fraction form
629,649.24/868,934.16 = 343,187.88/x - Step 3: Cross multiply
629,649.24x = 868,934.16 × 343,187.88 - Step 4: Simplify right side
629,649.24x = 298,207,672,229.98 - Step 5: Solve for x
x = 298,207,672,229.98/629,649.24 - Step 6: Final answer
x = 473,609.20
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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.