Finding the Fourth Proportional to 608,454.40, 911,284.18 and 303,913.79
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Solution
The fourth proportional to 608,454.40, 911,284.18 and 303,913.79 is: 455,172.70
Step by Step Solution
- Step 1: Write the proportion equation
608,454.40 : 911,284.18 = 303,913.79 : x - Step 2: Convert to fraction form
608,454.40/911,284.18 = 303,913.79/x - Step 3: Cross multiply
608,454.40x = 911,284.18 × 303,913.79 - Step 4: Simplify right side
608,454.40x = 276,951,833,847.44 - Step 5: Solve for x
x = 276,951,833,847.44/608,454.40 - Step 6: Final answer
x = 455,172.70
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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.