Finding the Fourth Proportional to 1,121,121.36, 1,680,682.02 and 410,983.62
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Solution
The fourth proportional to 1,121,121.36, 1,680,682.02 and 410,983.62 is: 616,108.84
Step by Step Solution
- Step 1: Write the proportion equation
1,121,121.36 : 1,680,682.02 = 410,983.62 : x - Step 2: Convert to fraction form
1,121,121.36/1,680,682.02 = 410,983.62/x - Step 3: Cross multiply
1,121,121.36x = 1,680,682.02 × 410,983.62 - Step 4: Simplify right side
1,121,121.36x = 690,732,780,648.51 - Step 5: Solve for x
x = 690,732,780,648.51/1,121,121.36 - Step 6: Final answer
x = 616,108.84
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1.5x scale
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.