Finding the Fourth Proportional to 870,408.96, 1,305,744.96 and 309,310.08
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Solution
The fourth proportional to 870,408.96, 1,305,744.96 and 309,310.08 is: 464,011.86
Step by Step Solution
- Step 1: Write the proportion equation
870,408.96 : 1,305,744.96 = 309,310.08 : x - Step 2: Convert to fraction form
870,408.96/1,305,744.96 = 309,310.08/x - Step 3: Cross multiply
870,408.96x = 1,305,744.96 × 309,310.08 - Step 4: Simplify right side
870,408.96x = 403,880,078,037.20 - Step 5: Solve for x
x = 403,880,078,037.20/870,408.96 - Step 6: Final answer
x = 464,011.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.