Finding the Fourth Proportional to 821,926.17, 1,232,891.57 and 253,288.92
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Solution
The fourth proportional to 821,926.17, 1,232,891.57 and 253,288.92 is: 379,934.09
Step by Step Solution
- Step 1: Write the proportion equation
821,926.17 : 1,232,891.57 = 253,288.92 : x - Step 2: Convert to fraction form
821,926.17/1,232,891.57 = 253,288.92/x - Step 3: Cross multiply
821,926.17x = 1,232,891.57 × 253,288.92 - Step 4: Simplify right side
821,926.17x = 312,277,774,242.40 - Step 5: Solve for x
x = 312,277,774,242.40/821,926.17 - Step 6: Final answer
x = 379,934.09
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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.