Finding the Fourth Proportional to 629,620.64, 868,851.18 and 343,134.57
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Solution
The fourth proportional to 629,620.64, 868,851.18 and 343,134.57 is: 473,511.92
Step by Step Solution
- Step 1: Write the proportion equation
629,620.64 : 868,851.18 = 343,134.57 : x - Step 2: Convert to fraction form
629,620.64/868,851.18 = 343,134.57/x - Step 3: Cross multiply
629,620.64x = 868,851.18 × 343,134.57 - Step 4: Simplify right side
629,620.64x = 298,132,876,043.29 - Step 5: Solve for x
x = 298,132,876,043.29/629,620.64 - Step 6: Final answer
x = 473,511.92
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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.