Finding the Fourth Proportional to 1,431,508.14, 2,147,206.17 and 484,878.87
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Solution
The fourth proportional to 1,431,508.14, 2,147,206.17 and 484,878.87 is: 727,299.32
Step by Step Solution
- Step 1: Write the proportion equation
1,431,508.14 : 2,147,206.17 = 484,878.87 : x - Step 2: Convert to fraction form
1,431,508.14/2,147,206.17 = 484,878.87/x - Step 3: Cross multiply
1,431,508.14x = 2,147,206.17 × 484,878.87 - Step 4: Simplify right side
1,431,508.14x = 1,041,134,901,366.63 - Step 5: Solve for x
x = 1,041,134,901,366.63/1,431,508.14 - Step 6: Final answer
x = 727,299.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.