Finding the Fourth Proportional to 612,733.29, 919,961.07 and 313,428.68
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Solution
The fourth proportional to 612,733.29, 919,961.07 and 313,428.68 is: 470,583.50
Step by Step Solution
- Step 1: Write the proportion equation
612,733.29 : 919,961.07 = 313,428.68 : x - Step 2: Convert to fraction form
612,733.29/919,961.07 = 313,428.68/x - Step 3: Cross multiply
612,733.29x = 919,961.07 × 313,428.68 - Step 4: Simplify right side
612,733.29x = 288,342,179,221.68 - Step 5: Solve for x
x = 288,342,179,221.68/612,733.29 - Step 6: Final answer
x = 470,583.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.