Finding the Fourth Proportional to 1,419,471.95, 2,129,543.53 and 459,925.97
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Solution
The fourth proportional to 1,419,471.95, 2,129,543.53 and 459,925.97 is: 689,997.69
Step by Step Solution
- Step 1: Write the proportion equation
1,419,471.95 : 2,129,543.53 = 459,925.97 : x - Step 2: Convert to fraction form
1,419,471.95/2,129,543.53 = 459,925.97/x - Step 3: Cross multiply
1,419,471.95x = 2,129,543.53 × 459,925.97 - Step 4: Simplify right side
1,419,471.95x = 979,432,361,894.94 - Step 5: Solve for x
x = 979,432,361,894.94/1,419,471.95 - Step 6: Final answer
x = 689,997.69
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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.