Finding the Fourth Proportional to 712,222.21, 1,068,438.57 and 206,717.68
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Solution
The fourth proportional to 712,222.21, 1,068,438.57 and 206,717.68 is: 310,107.07
Step by Step Solution
- Step 1: Write the proportion equation
712,222.21 : 1,068,438.57 = 206,717.68 : x - Step 2: Convert to fraction form
712,222.21/1,068,438.57 = 206,717.68/x - Step 3: Cross multiply
712,222.21x = 1,068,438.57 × 206,717.68 - Step 4: Simplify right side
712,222.21x = 220,865,142,412.92 - Step 5: Solve for x
x = 220,865,142,412.92/712,222.21 - Step 6: Final answer
x = 310,107.07
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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.