Finding the Fourth Proportional to 1,278,912.60, 1,764,895.66 and 705,948.66
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Solution
The fourth proportional to 1,278,912.60, 1,764,895.66 and 705,948.66 is: 974,207.09
Step by Step Solution
- Step 1: Write the proportion equation
1,278,912.60 : 1,764,895.66 = 705,948.66 : x - Step 2: Convert to fraction form
1,278,912.60/1,764,895.66 = 705,948.66/x - Step 3: Cross multiply
1,278,912.60x = 1,764,895.66 × 705,948.66 - Step 4: Simplify right side
1,278,912.60x = 1,245,925,724,451.94 - Step 5: Solve for x
x = 1,245,925,724,451.94/1,278,912.60 - Step 6: Final answer
x = 974,207.09
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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.