Finding the Fourth Proportional to 723,785.98, 1,084,571.84 and 386,874.58
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Solution
The fourth proportional to 723,785.98, 1,084,571.84 and 386,874.58 is: 579,720.09
Step by Step Solution
- Step 1: Write the proportion equation
723,785.98 : 1,084,571.84 = 386,874.58 : x - Step 2: Convert to fraction form
723,785.98/1,084,571.84 = 386,874.58/x - Step 3: Cross multiply
723,785.98x = 1,084,571.84 × 386,874.58 - Step 4: Simplify right side
723,785.98x = 419,593,275,079.83 - Step 5: Solve for x
x = 419,593,275,079.83/723,785.98 - Step 6: Final answer
x = 579,720.09
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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.