Finding the Fourth Proportional to 782,106.12, 1,079,322.84 and 442,574.28
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Solution
The fourth proportional to 782,106.12, 1,079,322.84 and 442,574.28 is: 610,761.78
Step by Step Solution
- Step 1: Write the proportion equation
782,106.12 : 1,079,322.84 = 442,574.28 : x - Step 2: Convert to fraction form
782,106.12/1,079,322.84 = 442,574.28/x - Step 3: Cross multiply
782,106.12x = 1,079,322.84 × 442,574.28 - Step 4: Simplify right side
782,106.12x = 477,680,528,800.56 - Step 5: Solve for x
x = 477,680,528,800.56/782,106.12 - Step 6: Final answer
x = 610,761.78
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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.