Finding the Fourth Proportional to 427,660.74, 590,190.35 and 236,674.20
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Solution
The fourth proportional to 427,660.74, 590,190.35 and 236,674.20 is: 326,620.65
Step by Step Solution
- Step 1: Write the proportion equation
427,660.74 : 590,190.35 = 236,674.20 : x - Step 2: Convert to fraction form
427,660.74/590,190.35 = 236,674.20/x - Step 3: Cross multiply
427,660.74x = 590,190.35 × 236,674.20 - Step 4: Simplify right side
427,660.74x = 139,682,827,750.60 - Step 5: Solve for x
x = 139,682,827,750.60/427,660.74 - Step 6: Final answer
x = 326,620.65
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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.