Finding the Fourth Proportional to 723,739.60, 1,084,831.80 and 274,286.80
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Solution
The fourth proportional to 723,739.60, 1,084,831.80 and 274,286.80 is: 411,135.50
Step by Step Solution
- Step 1: Write the proportion equation
723,739.60 : 1,084,831.80 = 274,286.80 : x - Step 2: Convert to fraction form
723,739.60/1,084,831.80 = 274,286.80/x - Step 3: Cross multiply
723,739.60x = 1,084,831.80 × 274,286.80 - Step 4: Simplify right side
723,739.60x = 297,555,042,960.24 - Step 5: Solve for x
x = 297,555,042,960.24/723,739.60 - Step 6: Final answer
x = 411,135.50
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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.