Finding the Fourth Proportional to 486,634.97, 666,678.76 and 468,440.99
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Solution
The fourth proportional to 486,634.97, 666,678.76 and 468,440.99 is: 641,753.42
Step by Step Solution
- Step 1: Write the proportion equation
486,634.97 : 666,678.76 = 468,440.99 : x - Step 2: Convert to fraction form
486,634.97/666,678.76 = 468,440.99/x - Step 3: Cross multiply
486,634.97x = 666,678.76 × 468,440.99 - Step 4: Simplify right side
486,634.97x = 312,299,658,346.37 - Step 5: Solve for x
x = 312,299,658,346.37/486,634.97 - Step 6: Final answer
x = 641,753.42
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.