Finding the Fourth Proportional to 821,587.70, 1,232,425.97 and 253,359.99
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Solution
The fourth proportional to 821,587.70, 1,232,425.97 and 253,359.99 is: 380,053.68
Step by Step Solution
- Step 1: Write the proportion equation
821,587.70 : 1,232,425.97 = 253,359.99 : x - Step 2: Convert to fraction form
821,587.70/1,232,425.97 = 253,359.99/x - Step 3: Cross multiply
821,587.70x = 1,232,425.97 × 253,359.99 - Step 4: Simplify right side
821,587.70x = 312,247,430,168.14 - Step 5: Solve for x
x = 312,247,430,168.14/821,587.70 - Step 6: Final answer
x = 380,053.68
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1.5x scale
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.