Finding the Fourth Proportional to 485,593.11, 669,880.35 and 324,487.80
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Solution
The fourth proportional to 485,593.11, 669,880.35 and 324,487.80 is: 447,634.03
Step by Step Solution
- Step 1: Write the proportion equation
485,593.11 : 669,880.35 = 324,487.80 : x - Step 2: Convert to fraction form
485,593.11/669,880.35 = 324,487.80/x - Step 3: Cross multiply
485,593.11x = 669,880.35 × 324,487.80 - Step 4: Simplify right side
485,593.11x = 217,368,001,034.73 - Step 5: Solve for x
x = 217,368,001,034.73/485,593.11 - Step 6: Final answer
x = 447,634.03
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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.