Finding the Fourth Proportional to 641,979.12, 885,778.99 and 380,202.26
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Solution
The fourth proportional to 641,979.12, 885,778.99 and 380,202.26 is: 524,588.98
Step by Step Solution
- Step 1: Write the proportion equation
641,979.12 : 885,778.99 = 380,202.26 : x - Step 2: Convert to fraction form
641,979.12/885,778.99 = 380,202.26/x - Step 3: Cross multiply
641,979.12x = 885,778.99 × 380,202.26 - Step 4: Simplify right side
641,979.12x = 336,775,170,617.76 - Step 5: Solve for x
x = 336,775,170,617.76/641,979.12 - Step 6: Final answer
x = 524,588.98
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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.