Finding the Fourth Proportional to 1,543,446.43, 2,315,257.12 and 478,639.87
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Solution
The fourth proportional to 1,543,446.43, 2,315,257.12 and 478,639.87 is: 717,986.93
Step by Step Solution
- Step 1: Write the proportion equation
1,543,446.43 : 2,315,257.12 = 478,639.87 : x - Step 2: Convert to fraction form
1,543,446.43/2,315,257.12 = 478,639.87/x - Step 3: Cross multiply
1,543,446.43x = 2,315,257.12 × 478,639.87 - Step 4: Simplify right side
1,543,446.43x = 1,108,174,366,933.37 - Step 5: Solve for x
x = 1,108,174,366,933.37/1,543,446.43 - Step 6: Final answer
x = 717,986.93
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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.