Finding the Fourth Proportional to 1,567,638.31, 2,351,464.75 and 430,416.53
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Solution
The fourth proportional to 1,567,638.31, 2,351,464.75 and 430,416.53 is: 645,626.80
Step by Step Solution
- Step 1: Write the proportion equation
1,567,638.31 : 2,351,464.75 = 430,416.53 : x - Step 2: Convert to fraction form
1,567,638.31/2,351,464.75 = 430,416.53/x - Step 3: Cross multiply
1,567,638.31x = 2,351,464.75 × 430,416.53 - Step 4: Simplify right side
1,567,638.31x = 1,012,109,310,148.54 - Step 5: Solve for x
x = 1,012,109,310,148.54/1,567,638.31 - Step 6: Final answer
x = 645,626.80
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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.