Finding the Fourth Proportional to 548,136.60, 821,660.58 and 263,768.28
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Solution
The fourth proportional to 548,136.60, 821,660.58 and 263,768.28 is: 395,390.49
Step by Step Solution
- Step 1: Write the proportion equation
548,136.60 : 821,660.58 = 263,768.28 : x - Step 2: Convert to fraction form
548,136.60/821,660.58 = 263,768.28/x - Step 3: Cross multiply
548,136.60x = 821,660.58 × 263,768.28 - Step 4: Simplify right side
548,136.60x = 216,727,997,930.40 - Step 5: Solve for x
x = 216,727,997,930.40/548,136.60 - Step 6: Final answer
x = 395,390.49
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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.