Finding the Fourth Proportional to 1,129,761.26, 1,559,082.70 and 620,463.63
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Solution
The fourth proportional to 1,129,761.26, 1,559,082.70 and 620,463.63 is: 856,246.49
Step by Step Solution
- Step 1: Write the proportion equation
1,129,761.26 : 1,559,082.70 = 620,463.63 : x - Step 2: Convert to fraction form
1,129,761.26/1,559,082.70 = 620,463.63/x - Step 3: Cross multiply
1,129,761.26x = 1,559,082.70 × 620,463.63 - Step 4: Simplify right side
1,129,761.26x = 967,354,111,512.20 - Step 5: Solve for x
x = 967,354,111,512.20/1,129,761.26 - Step 6: Final answer
x = 856,246.49
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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.