Finding the Fourth Proportional to 1,121,911.97, 1,683,480.31 and 649,519.97
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Solution
The fourth proportional to 1,121,911.97, 1,683,480.31 and 649,519.97 is: 974,634.47
Step by Step Solution
- Step 1: Write the proportion equation
1,121,911.97 : 1,683,480.31 = 649,519.97 : x - Step 2: Convert to fraction form
1,121,911.97/1,683,480.31 = 649,519.97/x - Step 3: Cross multiply
1,121,911.97x = 1,683,480.31 × 649,519.97 - Step 4: Simplify right side
1,121,911.97x = 1,093,454,070,405.59 - Step 5: Solve for x
x = 1,093,454,070,405.59/1,121,911.97 - Step 6: Final answer
x = 974,634.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.