Finding the Fourth Proportional to 641,946.26, 885,874.98 and 355,460.19
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Solution
The fourth proportional to 641,946.26, 885,874.98 and 355,460.19 is: 490,529.05
Step by Step Solution
- Step 1: Write the proportion equation
641,946.26 : 885,874.98 = 355,460.19 : x - Step 2: Convert to fraction form
641,946.26/885,874.98 = 355,460.19/x - Step 3: Cross multiply
641,946.26x = 885,874.98 × 355,460.19 - Step 4: Simplify right side
641,946.26x = 314,893,288,707.05 - Step 5: Solve for x
x = 314,893,288,707.05/641,946.26 - Step 6: Final answer
x = 490,529.05
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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.