Finding the Fourth Proportional to 1,353,980.21, 1,868,698.49 and 864,161.19
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Solution
The fourth proportional to 1,353,980.21, 1,868,698.49 and 864,161.19 is: 1,192,673.79
Step by Step Solution
- Step 1: Write the proportion equation
1,353,980.21 : 1,868,698.49 = 864,161.19 : x - Step 2: Convert to fraction form
1,353,980.21/1,868,698.49 = 864,161.19/x - Step 3: Cross multiply
1,353,980.21x = 1,868,698.49 × 864,161.19 - Step 4: Simplify right side
1,353,980.21x = 1,614,856,706,548.80 - Step 5: Solve for x
x = 1,614,856,706,548.80/1,353,980.21 - Step 6: Final answer
x = 1,192,673.79
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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.