Finding the Fourth Proportional to 1,263,129.49, 1,743,130.92 and 690,169.63
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Solution
The fourth proportional to 1,263,129.49, 1,743,130.92 and 690,169.63 is: 952,440.77
Step by Step Solution
- Step 1: Write the proportion equation
1,263,129.49 : 1,743,130.92 = 690,169.63 : x - Step 2: Convert to fraction form
1,263,129.49/1,743,130.92 = 690,169.63/x - Step 3: Cross multiply
1,263,129.49x = 1,743,130.92 × 690,169.63 - Step 4: Simplify right side
1,263,129.49x = 1,203,056,022,097.96 - Step 5: Solve for x
x = 1,203,056,022,097.96/1,263,129.49 - Step 6: Final answer
x = 952,440.77
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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.