Finding the Fourth Proportional to 685,475.45, 1,028,423.37 and 306,714.99
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Solution
The fourth proportional to 685,475.45, 1,028,423.37 and 306,714.99 is: 460,166.54
Step by Step Solution
- Step 1: Write the proportion equation
685,475.45 : 1,028,423.37 = 306,714.99 : x - Step 2: Convert to fraction form
685,475.45/1,028,423.37 = 306,714.99/x - Step 3: Cross multiply
685,475.45x = 1,028,423.37 × 306,714.99 - Step 4: Simplify right side
685,475.45x = 315,432,863,645.32 - Step 5: Solve for x
x = 315,432,863,645.32/685,475.45 - Step 6: Final answer
x = 460,166.54
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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.