Finding the Fourth Proportional to 810,964.25, 1,214,674.49 and 410,918.21
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Solution
The fourth proportional to 810,964.25, 1,214,674.49 and 410,918.21 is: 615,479.49
Step by Step Solution
- Step 1: Write the proportion equation
810,964.25 : 1,214,674.49 = 410,918.21 : x - Step 2: Convert to fraction form
810,964.25/1,214,674.49 = 410,918.21/x - Step 3: Cross multiply
810,964.25x = 1,214,674.49 × 410,918.21 - Step 4: Simplify right side
810,964.25x = 499,131,862,117.39 - Step 5: Solve for x
x = 499,131,862,117.39/810,964.25 - Step 6: Final answer
x = 615,479.49
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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.