Finding the Fourth Proportional to 686,106.24, 946,812.47 and 380,179.97
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Solution
The fourth proportional to 686,106.24, 946,812.47 and 380,179.97 is: 524,640.52
Step by Step Solution
- Step 1: Write the proportion equation
686,106.24 : 946,812.47 = 380,179.97 : x - Step 2: Convert to fraction form
686,106.24/946,812.47 = 380,179.97/x - Step 3: Cross multiply
686,106.24x = 946,812.47 × 380,179.97 - Step 4: Simplify right side
686,106.24x = 359,959,136,440.23 - Step 5: Solve for x
x = 359,959,136,440.23/686,106.24 - Step 6: Final answer
x = 524,640.52
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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.