Finding the Fourth Proportional to 422,906.69, 633,237.68 and 330,804.23
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Solution
The fourth proportional to 422,906.69, 633,237.68 and 330,804.23 is: 495,328.41
Step by Step Solution
- Step 1: Write the proportion equation
422,906.69 : 633,237.68 = 330,804.23 : x - Step 2: Convert to fraction form
422,906.69/633,237.68 = 330,804.23/x - Step 3: Cross multiply
422,906.69x = 633,237.68 × 330,804.23 - Step 4: Simplify right side
422,906.69x = 209,477,700,800.21 - Step 5: Solve for x
x = 209,477,700,800.21/422,906.69 - Step 6: Final answer
x = 495,328.41
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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.