Finding the Fourth Proportional to 629,614.18, 868,842.21 and 343,128.10
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Solution
The fourth proportional to 629,614.18, 868,842.21 and 343,128.10 is: 473,502.96
Step by Step Solution
- Step 1: Write the proportion equation
629,614.18 : 868,842.21 = 343,128.10 : x - Step 2: Convert to fraction form
629,614.18/868,842.21 = 343,128.10/x - Step 3: Cross multiply
629,614.18x = 868,842.21 × 343,128.10 - Step 4: Simplify right side
629,614.18x = 298,124,176,717.10 - Step 5: Solve for x
x = 298,124,176,717.10/629,614.18 - Step 6: Final answer
x = 473,502.96
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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.