Finding the Fourth Proportional to 1,330,022.22, 1,995,313.92 and 431,394.18
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Solution
The fourth proportional to 1,330,022.22, 1,995,313.92 and 431,394.18 is: 647,182.28
Step by Step Solution
- Step 1: Write the proportion equation
1,330,022.22 : 1,995,313.92 = 431,394.18 : x - Step 2: Convert to fraction form
1,330,022.22/1,995,313.92 = 431,394.18/x - Step 3: Cross multiply
1,330,022.22x = 1,995,313.92 × 431,394.18 - Step 4: Simplify right side
1,330,022.22x = 860,766,812,360.99 - Step 5: Solve for x
x = 860,766,812,360.99/1,330,022.22 - Step 6: Final answer
x = 647,182.28
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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.