Finding the Fourth Proportional to 629,405.68, 868,589.76 and 342,925.66
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Solution
The fourth proportional to 629,405.68, 868,589.76 and 342,925.66 is: 473,242.82
Step by Step Solution
- Step 1: Write the proportion equation
629,405.68 : 868,589.76 = 342,925.66 : x - Step 2: Convert to fraction form
629,405.68/868,589.76 = 342,925.66/x - Step 3: Cross multiply
629,405.68x = 868,589.76 × 342,925.66 - Step 4: Simplify right side
629,405.68x = 297,861,716,717.24 - Step 5: Solve for x
x = 297,861,716,717.24/629,405.68 - Step 6: Final answer
x = 473,242.82
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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.