Finding the Fourth Proportional to 485,593.14, 669,880.35 and 324,487.74
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Solution
The fourth proportional to 485,593.14, 669,880.35 and 324,487.74 is: 447,633.92
Step by Step Solution
- Step 1: Write the proportion equation
485,593.14 : 669,880.35 = 324,487.74 : x - Step 2: Convert to fraction form
485,593.14/669,880.35 = 324,487.74/x - Step 3: Cross multiply
485,593.14x = 669,880.35 × 324,487.74 - Step 4: Simplify right side
485,593.14x = 217,367,960,841.91 - Step 5: Solve for x
x = 217,367,960,841.91/485,593.14 - Step 6: Final answer
x = 447,633.92
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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.