Finding the Fourth Proportional to 1,632,245.40, 2,448,368.10 and 1,621,747.80
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Solution
The fourth proportional to 1,632,245.40, 2,448,368.10 and 1,621,747.80 is: 2,432,621.70
Step by Step Solution
- Step 1: Write the proportion equation
1,632,245.40 : 2,448,368.10 = 1,621,747.80 : x - Step 2: Convert to fraction form
1,632,245.40/2,448,368.10 = 1,621,747.80/x - Step 3: Cross multiply
1,632,245.40x = 2,448,368.10 × 1,621,747.80 - Step 4: Simplify right side
1,632,245.40x = 3,970,635,579,765.18 - Step 5: Solve for x
x = 3,970,635,579,765.18/1,632,245.40 - Step 6: Final answer
x = 2,432,621.70
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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.