Finding the Fourth Proportional to 685,475.20, 1,028,422.99 and 306,714.74
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Solution
The fourth proportional to 685,475.20, 1,028,422.99 and 306,714.74 is: 460,166.17
Step by Step Solution
- Step 1: Write the proportion equation
685,475.20 : 1,028,422.99 = 306,714.74 : x - Step 2: Convert to fraction form
685,475.20/1,028,422.99 = 306,714.74/x - Step 3: Cross multiply
685,475.20x = 1,028,422.99 × 306,714.74 - Step 4: Simplify right side
685,475.20x = 315,432,492,942.32 - Step 5: Solve for x
x = 315,432,492,942.32/685,475.20 - Step 6: Final answer
x = 460,166.17
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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.