Finding the Fourth Proportional to 3,478,635.60, 5,217,694.20 and 1,456,357.20
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Solution
The fourth proportional to 3,478,635.60, 5,217,694.20 and 1,456,357.20 is: 2,184,427.28
Step by Step Solution
- Step 1: Write the proportion equation
3,478,635.60 : 5,217,694.20 = 1,456,357.20 : x - Step 2: Convert to fraction form
3,478,635.60/5,217,694.20 = 1,456,357.20/x - Step 3: Cross multiply
3,478,635.60x = 5,217,694.20 × 1,456,357.20 - Step 4: Simplify right side
3,478,635.60x = 7,598,826,515,568.24 - Step 5: Solve for x
x = 7,598,826,515,568.24/3,478,635.60 - Step 6: Final answer
x = 2,184,427.28
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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.