Finding the Fourth Proportional to 1,129,769.19, 1,559,093.76 and 620,471.52
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Solution
The fourth proportional to 1,129,769.19, 1,559,093.76 and 620,471.52 is: 856,257.44
Step by Step Solution
- Step 1: Write the proportion equation
1,129,769.19 : 1,559,093.76 = 620,471.52 : x - Step 2: Convert to fraction form
1,129,769.19/1,559,093.76 = 620,471.52/x - Step 3: Cross multiply
1,129,769.19x = 1,559,093.76 × 620,471.52 - Step 4: Simplify right side
1,129,769.19x = 967,373,275,089.72 - Step 5: Solve for x
x = 967,373,275,089.72/1,129,769.19 - Step 6: Final answer
x = 856,257.44
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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.