Finding the Fourth Proportional to 629,629.36, 868,919.35 and 354,073.94
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Solution
The fourth proportional to 629,629.36, 868,919.35 and 354,073.94 is: 488,639.37
Step by Step Solution
- Step 1: Write the proportion equation
629,629.36 : 868,919.35 = 354,073.94 : x - Step 2: Convert to fraction form
629,629.36/868,919.35 = 354,073.94/x - Step 3: Cross multiply
629,629.36x = 868,919.35 × 354,073.94 - Step 4: Simplify right side
629,629.36x = 307,661,696,489.29 - Step 5: Solve for x
x = 307,661,696,489.29/629,629.36 - Step 6: Final answer
x = 488,639.37
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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.