Finding the Fourth Proportional to 1,129,433.76, 1,558,640.88 and 620,131.68
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Solution
The fourth proportional to 1,129,433.76, 1,558,640.88 and 620,131.68 is: 855,793.96
Step by Step Solution
- Step 1: Write the proportion equation
1,129,433.76 : 1,558,640.88 = 620,131.68 : x - Step 2: Convert to fraction form
1,129,433.76/1,558,640.88 = 620,131.68/x - Step 3: Cross multiply
1,129,433.76x = 1,558,640.88 × 620,131.68 - Step 4: Simplify right side
1,129,433.76x = 966,562,587,431.08 - Step 5: Solve for x
x = 966,562,587,431.08/1,129,433.76 - Step 6: Final answer
x = 855,793.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.