Finding the Fourth Proportional to 2,260,748.85, 3,119,868.81 and 1,228,277.09
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Solution
The fourth proportional to 2,260,748.85, 3,119,868.81 and 1,228,277.09 is: 1,695,041.62
Step by Step Solution
- Step 1: Write the proportion equation
2,260,748.85 : 3,119,868.81 = 1,228,277.09 : x - Step 2: Convert to fraction form
2,260,748.85/3,119,868.81 = 1,228,277.09/x - Step 3: Cross multiply
2,260,748.85x = 3,119,868.81 × 1,228,277.09 - Step 4: Simplify right side
2,260,748.85x = 3,832,063,383,128.56 - Step 5: Solve for x
x = 3,832,063,383,128.56/2,260,748.85 - Step 6: Final answer
x = 1,695,041.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.