Finding the Fourth Proportional to 664,474.20, 996,711.30 and 348,890.10
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Solution
The fourth proportional to 664,474.20, 996,711.30 and 348,890.10 is: 523,335.15
Step by Step Solution
- Step 1: Write the proportion equation
664,474.20 : 996,711.30 = 348,890.10 : x - Step 2: Convert to fraction form
664,474.20/996,711.30 = 348,890.10/x - Step 3: Cross multiply
664,474.20x = 996,711.30 × 348,890.10 - Step 4: Simplify right side
664,474.20x = 347,742,705,128.13 - Step 5: Solve for x
x = 347,742,705,128.13/664,474.20 - Step 6: Final answer
x = 523,335.15
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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.