Finding the Fourth Proportional to 628,684.48, 867,583.72 and 342,203.68
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Solution
The fourth proportional to 628,684.48, 867,583.72 and 342,203.68 is: 472,240.61
Step by Step Solution
- Step 1: Write the proportion equation
628,684.48 : 867,583.72 = 342,203.68 : x - Step 2: Convert to fraction form
628,684.48/867,583.72 = 342,203.68/x - Step 3: Cross multiply
628,684.48x = 867,583.72 × 342,203.68 - Step 4: Simplify right side
628,684.48x = 296,890,341,692.09 - Step 5: Solve for x
x = 296,890,341,692.09/628,684.48 - Step 6: Final answer
x = 472,240.61
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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.