Finding the Fourth Proportional to 1,283,371.21, 1,926,949.25 and 715,861.11
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Solution
The fourth proportional to 1,283,371.21, 1,926,949.25 and 715,861.11 is: 1,074,847.26
Step by Step Solution
- Step 1: Write the proportion equation
1,283,371.21 : 1,926,949.25 = 715,861.11 : x - Step 2: Convert to fraction form
1,283,371.21/1,926,949.25 = 715,861.11/x - Step 3: Cross multiply
1,283,371.21x = 1,926,949.25 × 715,861.11 - Step 4: Simplify right side
1,283,371.21x = 1,379,428,025,439.36 - Step 5: Solve for x
x = 1,379,428,025,439.36/1,283,371.21 - Step 6: Final answer
x = 1,074,847.26
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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.