Finding the Fourth Proportional to 2,169,480.26, 2,993,907.12 and 1,239,311.20
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Solution
The fourth proportional to 2,169,480.26, 2,993,907.12 and 1,239,311.20 is: 1,710,263.37
Step by Step Solution
- Step 1: Write the proportion equation
2,169,480.26 : 2,993,907.12 = 1,239,311.20 : x - Step 2: Convert to fraction form
2,169,480.26/2,993,907.12 = 1,239,311.20/x - Step 3: Cross multiply
2,169,480.26x = 2,993,907.12 × 1,239,311.20 - Step 4: Simplify right side
2,169,480.26x = 3,710,382,619,379.19 - Step 5: Solve for x
x = 3,710,382,619,379.19/2,169,480.26 - Step 6: Final answer
x = 1,710,263.37
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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.