Finding the Fourth Proportional to 1,275,580.12, 1,913,372.58 and 1,197,635.44
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Solution
The fourth proportional to 1,275,580.12, 1,913,372.58 and 1,197,635.44 is: 1,796,455.41
Step by Step Solution
- Step 1: Write the proportion equation
1,275,580.12 : 1,913,372.58 = 1,197,635.44 : x - Step 2: Convert to fraction form
1,275,580.12/1,913,372.58 = 1,197,635.44/x - Step 3: Cross multiply
1,275,580.12x = 1,913,372.58 × 1,197,635.44 - Step 4: Simplify right side
1,275,580.12x = 2,291,522,811,732.24 - Step 5: Solve for x
x = 2,291,522,811,732.24/1,275,580.12 - Step 6: Final answer
x = 1,796,455.41
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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.