Finding the Fourth Proportional to 823,444.28, 1,234,310.09 and 318,352.17
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Solution
The fourth proportional to 823,444.28, 1,234,310.09 and 318,352.17 is: 477,197.20
Step by Step Solution
- Step 1: Write the proportion equation
823,444.28 : 1,234,310.09 = 318,352.17 : x - Step 2: Convert to fraction form
823,444.28/1,234,310.09 = 318,352.17/x - Step 3: Cross multiply
823,444.28x = 1,234,310.09 × 318,352.17 - Step 4: Simplify right side
823,444.28x = 392,945,300,432.03 - Step 5: Solve for x
x = 392,945,300,432.03/823,444.28 - Step 6: Final answer
x = 477,197.20
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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.