Finding the Fourth Proportional to 1,540,643.40, 2,310,921.90 and 699,193.80
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Solution
The fourth proportional to 1,540,643.40, 2,310,921.90 and 699,193.80 is: 1,048,771.09
Step by Step Solution
- Step 1: Write the proportion equation
1,540,643.40 : 2,310,921.90 = 699,193.80 : x - Step 2: Convert to fraction form
1,540,643.40/2,310,921.90 = 699,193.80/x - Step 3: Cross multiply
1,540,643.40x = 2,310,921.90 × 699,193.80 - Step 4: Simplify right side
1,540,643.40x = 1,615,782,264,764.22 - Step 5: Solve for x
x = 1,615,782,264,764.22/1,540,643.40 - Step 6: Final answer
x = 1,048,771.09
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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.