Finding the Fourth Proportional to 1,396,402.50, 1,926,917.10 and 784,507.26
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Solution
The fourth proportional to 1,396,402.50, 1,926,917.10 and 784,507.26 is: 1,082,553.53
Step by Step Solution
- Step 1: Write the proportion equation
1,396,402.50 : 1,926,917.10 = 784,507.26 : x - Step 2: Convert to fraction form
1,396,402.50/1,926,917.10 = 784,507.26/x - Step 3: Cross multiply
1,396,402.50x = 1,926,917.10 × 784,507.26 - Step 4: Simplify right side
1,396,402.50x = 1,511,680,454,368.15 - Step 5: Solve for x
x = 1,511,680,454,368.15/1,396,402.50 - Step 6: Final answer
x = 1,082,553.53
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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.