Finding the Fourth Proportional to 819,645.97, 1,131,993.62 and 623,966.17
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Solution
The fourth proportional to 819,645.97, 1,131,993.62 and 623,966.17 is: 861,744.89
Step by Step Solution
- Step 1: Write the proportion equation
819,645.97 : 1,131,993.62 = 623,966.17 : x - Step 2: Convert to fraction form
819,645.97/1,131,993.62 = 623,966.17/x - Step 3: Cross multiply
819,645.97x = 1,131,993.62 × 623,966.17 - Step 4: Simplify right side
819,645.97x = 706,325,722,265.77 - Step 5: Solve for x
x = 706,325,722,265.77/819,645.97 - Step 6: Final answer
x = 861,744.89
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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.