Finding the Fourth Proportional to 629,716.36, 869,009.10 and 343,230.68
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Solution
The fourth proportional to 629,716.36, 869,009.10 and 343,230.68 is: 473,658.62
Step by Step Solution
- Step 1: Write the proportion equation
629,716.36 : 869,009.10 = 343,230.68 : x - Step 2: Convert to fraction form
629,716.36/869,009.10 = 343,230.68/x - Step 3: Cross multiply
629,716.36x = 869,009.10 × 343,230.68 - Step 4: Simplify right side
629,716.36x = 298,270,584,319.19 - Step 5: Solve for x
x = 298,270,584,319.19/629,716.36 - Step 6: Final answer
x = 473,658.62
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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.