Finding the Fourth Proportional to 877,906.78, 1,211,609.68 and 495,958.16
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Solution
The fourth proportional to 877,906.78, 1,211,609.68 and 495,958.16 is: 684,477.81
Step by Step Solution
- Step 1: Write the proportion equation
877,906.78 : 1,211,609.68 = 495,958.16 : x - Step 2: Convert to fraction form
877,906.78/1,211,609.68 = 495,958.16/x - Step 3: Cross multiply
877,906.78x = 1,211,609.68 × 495,958.16 - Step 4: Simplify right side
877,906.78x = 600,907,707,530.99 - Step 5: Solve for x
x = 600,907,707,530.99/877,906.78 - Step 6: Final answer
x = 684,477.81
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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.