Finding the Fourth Proportional to 1,396,195.80, 1,926,795.84 and 784,457.40
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Solution
The fourth proportional to 1,396,195.80, 1,926,795.84 and 784,457.40 is: 1,082,576.85
Step by Step Solution
- Step 1: Write the proportion equation
1,396,195.80 : 1,926,795.84 = 784,457.40 : x - Step 2: Convert to fraction form
1,396,195.80/1,926,795.84 = 784,457.40/x - Step 3: Cross multiply
1,396,195.80x = 1,926,795.84 × 784,457.40 - Step 4: Simplify right side
1,396,195.80x = 1,511,489,254,977.22 - Step 5: Solve for x
x = 1,511,489,254,977.22/1,396,195.80 - Step 6: Final answer
x = 1,082,576.85
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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.