Finding the Fourth Proportional to 664,615.80, 996,923.70 and 327,817.80
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Solution
The fourth proportional to 664,615.80, 996,923.70 and 327,817.80 is: 491,726.70
Step by Step Solution
- Step 1: Write the proportion equation
664,615.80 : 996,923.70 = 327,817.80 : x - Step 2: Convert to fraction form
664,615.80/996,923.70 = 327,817.80/x - Step 3: Cross multiply
664,615.80x = 996,923.70 × 327,817.80 - Step 4: Simplify right side
664,615.80x = 326,809,334,101.86 - Step 5: Solve for x
x = 326,809,334,101.86/664,615.80 - Step 6: Final answer
x = 491,726.70
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Similar ratio
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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.