Finding the Fourth Proportional to 1,180,478.88, 1,628,857.76 and 664,160.99
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Solution
The fourth proportional to 1,180,478.88, 1,628,857.76 and 664,160.99 is: 916,427.89
Step by Step Solution
- Step 1: Write the proportion equation
1,180,478.88 : 1,628,857.76 = 664,160.99 : x - Step 2: Convert to fraction form
1,180,478.88/1,628,857.76 = 664,160.99/x - Step 3: Cross multiply
1,180,478.88x = 1,628,857.76 × 664,160.99 - Step 4: Simplify right side
1,180,478.88x = 1,081,823,770,985.69 - Step 5: Solve for x
x = 1,081,823,770,985.69/1,180,478.88 - Step 6: Final answer
x = 916,427.89
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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.