Finding the Fourth Proportional to 1,005,868.62, 1,388,135.21 and 576,231.80
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Solution
The fourth proportional to 1,005,868.62, 1,388,135.21 and 576,231.80 is: 795,220.79
Step by Step Solution
- Step 1: Write the proportion equation
1,005,868.62 : 1,388,135.21 = 576,231.80 : x - Step 2: Convert to fraction form
1,005,868.62/1,388,135.21 = 576,231.80/x - Step 3: Cross multiply
1,005,868.62x = 1,388,135.21 × 576,231.80 - Step 4: Simplify right side
1,005,868.62x = 799,887,640,879.84 - Step 5: Solve for x
x = 799,887,640,879.84/1,005,868.62 - Step 6: Final answer
x = 795,220.79
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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.