Finding the Fourth Proportional to 813,331.26, 1,121,399.42 and 659,935.08
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Solution
The fourth proportional to 813,331.26, 1,121,399.42 and 659,935.08 is: 909,900.86
Step by Step Solution
- Step 1: Write the proportion equation
813,331.26 : 1,121,399.42 = 659,935.08 : x - Step 2: Convert to fraction form
813,331.26/1,121,399.42 = 659,935.08/x - Step 3: Cross multiply
813,331.26x = 1,121,399.42 × 659,935.08 - Step 4: Simplify right side
813,331.26x = 740,050,815,949.65 - Step 5: Solve for x
x = 740,050,815,949.65/813,331.26 - Step 6: Final answer
x = 909,900.86
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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.