Finding the Fourth Proportional to 806,351.99, 1,112,742.11 and 443,775.65
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Solution
The fourth proportional to 806,351.99, 1,112,742.11 and 443,775.65 is: 612,397.39
Step by Step Solution
- Step 1: Write the proportion equation
806,351.99 : 1,112,742.11 = 443,775.65 : x - Step 2: Convert to fraction form
806,351.99/1,112,742.11 = 443,775.65/x - Step 3: Cross multiply
806,351.99x = 1,112,742.11 × 443,775.65 - Step 4: Simplify right side
806,351.99x = 493,807,848,693.35 - Step 5: Solve for x
x = 493,807,848,693.35/806,351.99 - Step 6: Final answer
x = 612,397.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.