Finding the Fourth Proportional to 396,439.68, 594,664.38 and 115,962.60
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Solution
The fourth proportional to 396,439.68, 594,664.38 and 115,962.60 is: 173,945.32
Step by Step Solution
- Step 1: Write the proportion equation
396,439.68 : 594,664.38 = 115,962.60 : x - Step 2: Convert to fraction form
396,439.68/594,664.38 = 115,962.60/x - Step 3: Cross multiply
396,439.68x = 594,664.38 × 115,962.60 - Step 4: Simplify right side
396,439.68x = 68,958,827,632.19 - Step 5: Solve for x
x = 68,958,827,632.19/396,439.68 - Step 6: Final answer
x = 173,945.32
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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.