Finding the Fourth Proportional to 636,275.34, 878,007.74 and 374,589.09
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Solution
The fourth proportional to 636,275.34, 878,007.74 and 374,589.09 is: 516,902.20
Step by Step Solution
- Step 1: Write the proportion equation
636,275.34 : 878,007.74 = 374,589.09 : x - Step 2: Convert to fraction form
636,275.34/878,007.74 = 374,589.09/x - Step 3: Cross multiply
636,275.34x = 878,007.74 × 374,589.09 - Step 4: Simplify right side
636,275.34x = 328,892,120,339.56 - Step 5: Solve for x
x = 328,892,120,339.56/636,275.34 - Step 6: Final answer
x = 516,902.20
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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.