Finding the Fourth Proportional to 1,613,474.60, 2,420,211.90 and 1,542,615.80
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Solution
The fourth proportional to 1,613,474.60, 2,420,211.90 and 1,542,615.80 is: 2,313,923.70
Step by Step Solution
- Step 1: Write the proportion equation
1,613,474.60 : 2,420,211.90 = 1,542,615.80 : x - Step 2: Convert to fraction form
1,613,474.60/2,420,211.90 = 1,542,615.80/x - Step 3: Cross multiply
1,613,474.60x = 2,420,211.90 × 1,542,615.80 - Step 4: Simplify right side
1,613,474.60x = 3,733,457,116,288.02 - Step 5: Solve for x
x = 3,733,457,116,288.02/1,613,474.60 - Step 6: Final answer
x = 2,313,923.70
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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.