Finding the Fourth Proportional to 853,701.21, 1,280,376.86 and 313,771.41
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Solution
The fourth proportional to 853,701.21, 1,280,376.86 and 313,771.41 is: 470,592.81
Step by Step Solution
- Step 1: Write the proportion equation
853,701.21 : 1,280,376.86 = 313,771.41 : x - Step 2: Convert to fraction form
853,701.21/1,280,376.86 = 313,771.41/x - Step 3: Cross multiply
853,701.21x = 1,280,376.86 × 313,771.41 - Step 4: Simplify right side
853,701.21x = 401,745,651,124.72 - Step 5: Solve for x
x = 401,745,651,124.72/853,701.21 - Step 6: Final answer
x = 470,592.81
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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.