Finding the Fourth Proportional to 821,541.77, 1,232,299.32 and 316,212.52
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Solution
The fourth proportional to 821,541.77, 1,232,299.32 and 316,212.52 is: 474,313.65
Step by Step Solution
- Step 1: Write the proportion equation
821,541.77 : 1,232,299.32 = 316,212.52 : x - Step 2: Convert to fraction form
821,541.77/1,232,299.32 = 316,212.52/x - Step 3: Cross multiply
821,541.77x = 1,232,299.32 × 316,212.52 - Step 4: Simplify right side
821,541.77x = 389,668,474,927.13 - Step 5: Solve for x
x = 389,668,474,927.13/821,541.77 - Step 6: Final answer
x = 474,313.65
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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.