Finding the Fourth Proportional to 641,838.10, 885,750.09 and 351,461.90
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Solution
The fourth proportional to 641,838.10, 885,750.09 and 351,461.90 is: 485,024.82
Step by Step Solution
- Step 1: Write the proportion equation
641,838.10 : 885,750.09 = 351,461.90 : x - Step 2: Convert to fraction form
641,838.10/885,750.09 = 351,461.90/x - Step 3: Cross multiply
641,838.10x = 885,750.09 × 351,461.90 - Step 4: Simplify right side
641,838.10x = 311,307,409,556.57 - Step 5: Solve for x
x = 311,307,409,556.57/641,838.10 - Step 6: Final answer
x = 485,024.82
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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.