Finding the Fourth Proportional to 641,613.92, 885,448.08 and 369,660.44
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Solution
The fourth proportional to 641,613.92, 885,448.08 and 369,660.44 is: 510,143.43
Step by Step Solution
- Step 1: Write the proportion equation
641,613.92 : 885,448.08 = 369,660.44 : x - Step 2: Convert to fraction form
641,613.92/885,448.08 = 369,660.44/x - Step 3: Cross multiply
641,613.92x = 885,448.08 × 369,660.44 - Step 4: Simplify right side
641,613.92x = 327,315,126,849.96 - Step 5: Solve for x
x = 327,315,126,849.96/641,613.92 - Step 6: Final answer
x = 510,143.43
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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.