Finding the Fourth Proportional to 1,543,446.68, 2,315,257.49 and 478,640.12
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Solution
The fourth proportional to 1,543,446.68, 2,315,257.49 and 478,640.12 is: 717,987.30
Step by Step Solution
- Step 1: Write the proportion equation
1,543,446.68 : 2,315,257.49 = 478,640.12 : x - Step 2: Convert to fraction form
1,543,446.68/2,315,257.49 = 478,640.12/x - Step 3: Cross multiply
1,543,446.68x = 2,315,257.49 × 478,640.12 - Step 4: Simplify right side
1,543,446.68x = 1,108,175,112,464.81 - Step 5: Solve for x
x = 1,108,175,112,464.81/1,543,446.68 - Step 6: Final answer
x = 717,987.30
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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.