Finding the Fourth Proportional to 628,847.26, 867,809.34 and 342,367.36
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Solution
The fourth proportional to 628,847.26, 867,809.34 and 342,367.36 is: 472,467.02
Step by Step Solution
- Step 1: Write the proportion equation
628,847.26 : 867,809.34 = 342,367.36 : x - Step 2: Convert to fraction form
628,847.26/867,809.34 = 342,367.36/x - Step 3: Cross multiply
628,847.26x = 867,809.34 × 342,367.36 - Step 4: Simplify right side
628,847.26x = 297,109,592,719.14 - Step 5: Solve for x
x = 297,109,592,719.14/628,847.26 - Step 6: Final answer
x = 472,467.02
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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.