Finding the Fourth Proportional to 1,613,392.40, 2,226,440.78 and 888,232.88
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Solution
The fourth proportional to 1,613,392.40, 2,226,440.78 and 888,232.88 is: 1,225,738.95
Step by Step Solution
- Step 1: Write the proportion equation
1,613,392.40 : 2,226,440.78 = 888,232.88 : x - Step 2: Convert to fraction form
1,613,392.40/2,226,440.78 = 888,232.88/x - Step 3: Cross multiply
1,613,392.40x = 2,226,440.78 × 888,232.88 - Step 4: Simplify right side
1,613,392.40x = 1,977,597,906,168.85 - Step 5: Solve for x
x = 1,977,597,906,168.85/1,613,392.40 - Step 6: Final answer
x = 1,225,738.95
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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.