Finding the Fourth Proportional to 612,944.44, 920,269.59 and 313,631.62
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Solution
The fourth proportional to 612,944.44, 920,269.59 and 313,631.62 is: 470,883.86
Step by Step Solution
- Step 1: Write the proportion equation
612,944.44 : 920,269.59 = 313,631.62 : x - Step 2: Convert to fraction form
612,944.44/920,269.59 = 313,631.62/x - Step 3: Cross multiply
612,944.44x = 920,269.59 × 313,631.62 - Step 4: Simplify right side
612,944.44x = 288,625,642,348.44 - Step 5: Solve for x
x = 288,625,642,348.44/612,944.44 - Step 6: Final answer
x = 470,883.86
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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.