Finding the Fourth Proportional to 723,783.98, 1,084,568.84 and 386,872.58
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Solution
The fourth proportional to 723,783.98, 1,084,568.84 and 386,872.58 is: 579,717.09
Step by Step Solution
- Step 1: Write the proportion equation
723,783.98 : 1,084,568.84 = 386,872.58 : x - Step 2: Convert to fraction form
723,783.98/1,084,568.84 = 386,872.58/x - Step 3: Cross multiply
723,783.98x = 1,084,568.84 × 386,872.58 - Step 4: Simplify right side
723,783.98x = 419,589,945,318.41 - Step 5: Solve for x
x = 419,589,945,318.41/723,783.98 - Step 6: Final answer
x = 579,717.09
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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.