Finding the Fourth Proportional to 1,543,442.18, 2,315,250.74 and 478,635.62
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Solution
The fourth proportional to 1,543,442.18, 2,315,250.74 and 478,635.62 is: 717,980.55
Step by Step Solution
- Step 1: Write the proportion equation
1,543,442.18 : 2,315,250.74 = 478,635.62 : x - Step 2: Convert to fraction form
1,543,442.18/2,315,250.74 = 478,635.62/x - Step 3: Cross multiply
1,543,442.18x = 2,315,250.74 × 478,635.62 - Step 4: Simplify right side
1,543,442.18x = 1,108,161,463,015.69 - Step 5: Solve for x
x = 1,108,161,463,015.69/1,543,442.18 - Step 6: Final answer
x = 717,980.55
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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.