Finding the Fourth Proportional to 743,551.11, 1,026,103.92 and 421,323.99
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Solution
The fourth proportional to 743,551.11, 1,026,103.92 and 421,323.99 is: 581,429.03
Step by Step Solution
- Step 1: Write the proportion equation
743,551.11 : 1,026,103.92 = 421,323.99 : x - Step 2: Convert to fraction form
743,551.11/1,026,103.92 = 421,323.99/x - Step 3: Cross multiply
743,551.11x = 1,026,103.92 × 421,323.99 - Step 4: Simplify right side
743,551.11x = 432,322,197,729.04 - Step 5: Solve for x
x = 432,322,197,729.04/743,551.11 - Step 6: Final answer
x = 581,429.03
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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.