Finding the Fourth Proportional to 629,593.84, 868,814.14 and 343,107.78
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Solution
The fourth proportional to 629,593.84, 868,814.14 and 343,107.78 is: 473,474.92
Step by Step Solution
- Step 1: Write the proportion equation
629,593.84 : 868,814.14 = 343,107.78 : x - Step 2: Convert to fraction form
629,593.84/868,814.14 = 343,107.78/x - Step 3: Cross multiply
629,593.84x = 868,814.14 × 343,107.78 - Step 4: Simplify right side
629,593.84x = 298,096,890,808.01 - Step 5: Solve for x
x = 298,096,890,808.01/629,593.84 - Step 6: Final answer
x = 473,474.92
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1.5x scale
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.