Finding the Fourth Proportional to 1,543,447.43, 2,315,258.62 and 478,640.87
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Solution
The fourth proportional to 1,543,447.43, 2,315,258.62 and 478,640.87 is: 717,988.43
Step by Step Solution
- Step 1: Write the proportion equation
1,543,447.43 : 2,315,258.62 = 478,640.87 : x - Step 2: Convert to fraction form
1,543,447.43/2,315,258.62 = 478,640.87/x - Step 3: Cross multiply
1,543,447.43x = 2,315,258.62 × 478,640.87 - Step 4: Simplify right side
1,543,447.43x = 1,108,177,400,151.80 - Step 5: Solve for x
x = 1,108,177,400,151.80/1,543,447.43 - Step 6: Final answer
x = 717,988.43
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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.