Finding the Fourth Proportional to 928,568.58, 1,278,160.47 and 813,576.12
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Solution
The fourth proportional to 928,568.58, 1,278,160.47 and 813,576.12 is: 1,119,875.10
Step by Step Solution
- Step 1: Write the proportion equation
928,568.58 : 1,278,160.47 = 813,576.12 : x - Step 2: Convert to fraction form
928,568.58/1,278,160.47 = 813,576.12/x - Step 3: Cross multiply
928,568.58x = 1,278,160.47 × 813,576.12 - Step 4: Simplify right side
928,568.58x = 1,039,880,835,919.98 - Step 5: Solve for x
x = 1,039,880,835,919.98/928,568.58 - Step 6: Final answer
x = 1,119,875.10
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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.