Finding the Fourth Proportional to 775,905.68, 1,070,589.28 and 453,553.44
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Solution
The fourth proportional to 775,905.68, 1,070,589.28 and 453,553.44 is: 625,809.89
Step by Step Solution
- Step 1: Write the proportion equation
775,905.68 : 1,070,589.28 = 453,553.44 : x - Step 2: Convert to fraction form
775,905.68/1,070,589.28 = 453,553.44/x - Step 3: Cross multiply
775,905.68x = 1,070,589.28 × 453,553.44 - Step 4: Simplify right side
775,905.68x = 485,569,450,771.12 - Step 5: Solve for x
x = 485,569,450,771.12/775,905.68 - Step 6: Final answer
x = 625,809.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.