Finding the Fourth Proportional to 1,635,625.70, 2,453,438.55 and 1,187,728.10
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Solution
The fourth proportional to 1,635,625.70, 2,453,438.55 and 1,187,728.10 is: 1,781,592.15
Step by Step Solution
- Step 1: Write the proportion equation
1,635,625.70 : 2,453,438.55 = 1,187,728.10 : x - Step 2: Convert to fraction form
1,635,625.70/2,453,438.55 = 1,187,728.10/x - Step 3: Cross multiply
1,635,625.70x = 2,453,438.55 × 1,187,728.10 - Step 4: Simplify right side
1,635,625.70x = 2,914,017,907,458.26 - Step 5: Solve for x
x = 2,914,017,907,458.26/1,635,625.70 - Step 6: Final answer
x = 1,781,592.15
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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.