Finding the Fourth Proportional to 861,359.68, 1,291,940.94 and 230,322.70
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Solution
The fourth proportional to 861,359.68, 1,291,940.94 and 230,322.70 is: 345,457.69
Step by Step Solution
- Step 1: Write the proportion equation
861,359.68 : 1,291,940.94 = 230,322.70 : x - Step 2: Convert to fraction form
861,359.68/1,291,940.94 = 230,322.70/x - Step 3: Cross multiply
861,359.68x = 1,291,940.94 × 230,322.70 - Step 4: Simplify right side
861,359.68x = 297,563,324,389.73 - Step 5: Solve for x
x = 297,563,324,389.73/861,359.68 - Step 6: Final answer
x = 345,457.69
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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.