Finding the Fourth Proportional to 1,643,630.49, 2,453,409.42 and 1,449,490.05
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Solution
The fourth proportional to 1,643,630.49, 2,453,409.42 and 1,449,490.05 is: 2,163,620.45
Step by Step Solution
- Step 1: Write the proportion equation
1,643,630.49 : 2,453,409.42 = 1,449,490.05 : x - Step 2: Convert to fraction form
1,643,630.49/2,453,409.42 = 1,449,490.05/x - Step 3: Cross multiply
1,643,630.49x = 2,453,409.42 × 1,449,490.05 - Step 4: Simplify right side
1,643,630.49x = 3,556,192,542,866.27 - Step 5: Solve for x
x = 3,556,192,542,866.27/1,643,630.49 - Step 6: Final answer
x = 2,163,620.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.