Finding the Fourth Proportional to 629,649.36, 868,946.96 and 354,093.92
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Solution
The fourth proportional to 629,649.36, 868,946.96 and 354,093.92 is: 488,666.95
Step by Step Solution
- Step 1: Write the proportion equation
629,649.36 : 868,946.96 = 354,093.92 : x - Step 2: Convert to fraction form
629,649.36/868,946.96 = 354,093.92/x - Step 3: Cross multiply
629,649.36x = 868,946.96 × 354,093.92 - Step 4: Simplify right side
629,649.36x = 307,688,835,338.48 - Step 5: Solve for x
x = 307,688,835,338.48/629,649.36 - Step 6: Final answer
x = 488,666.95
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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.