Finding the Fourth Proportional to 990,614.36, 1,484,884.43 and 414,567.68
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Solution
The fourth proportional to 990,614.36, 1,484,884.43 and 414,567.68 is: 621,417.49
Step by Step Solution
- Step 1: Write the proportion equation
990,614.36 : 1,484,884.43 = 414,567.68 : x - Step 2: Convert to fraction form
990,614.36/1,484,884.43 = 414,567.68/x - Step 3: Cross multiply
990,614.36x = 1,484,884.43 × 414,567.68 - Step 4: Simplify right side
990,614.36x = 615,585,093,213.22 - Step 5: Solve for x
x = 615,585,093,213.22/990,614.36 - Step 6: Final answer
x = 621,417.49
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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.