Finding the Fourth Proportional to 1,021,712.43, 1,409,857.08 and 629,182.99
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Solution
The fourth proportional to 1,021,712.43, 1,409,857.08 and 629,182.99 is: 868,207.20
Step by Step Solution
- Step 1: Write the proportion equation
1,021,712.43 : 1,409,857.08 = 629,182.99 : x - Step 2: Convert to fraction form
1,021,712.43/1,409,857.08 = 629,182.99/x - Step 3: Cross multiply
1,021,712.43x = 1,409,857.08 × 629,182.99 - Step 4: Simplify right side
1,021,712.43x = 887,058,093,067.07 - Step 5: Solve for x
x = 887,058,093,067.07/1,021,712.43 - Step 6: Final answer
x = 868,207.20
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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.