Finding the Fourth Proportional to 629,669.18, 868,961.67 and 343,207.82
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Solution
The fourth proportional to 629,669.18, 868,961.67 and 343,207.82 is: 473,636.71
Step by Step Solution
- Step 1: Write the proportion equation
629,669.18 : 868,961.67 = 343,207.82 : x - Step 2: Convert to fraction form
629,669.18/868,961.67 = 343,207.82/x - Step 3: Cross multiply
629,669.18x = 868,961.67 × 343,207.82 - Step 4: Simplify right side
629,669.18x = 298,234,440,424.26 - Step 5: Solve for x
x = 298,234,440,424.26/629,669.18 - Step 6: Final answer
x = 473,636.71
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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.