Finding the Fourth Proportional to 1,021,711.43, 1,409,855.70 and 629,181.99
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Solution
The fourth proportional to 1,021,711.43, 1,409,855.70 and 629,181.99 is: 868,205.82
Step by Step Solution
- Step 1: Write the proportion equation
1,021,711.43 : 1,409,855.70 = 629,181.99 : x - Step 2: Convert to fraction form
1,021,711.43/1,409,855.70 = 629,181.99/x - Step 3: Cross multiply
1,021,711.43x = 1,409,855.70 × 629,181.99 - Step 4: Simplify right side
1,021,711.43x = 887,055,814,938.84 - Step 5: Solve for x
x = 887,055,814,938.84/1,021,711.43 - Step 6: Final answer
x = 868,205.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.