Finding the Fourth Proportional to 646,378.40, 970,010.46 and 225,654.26
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Solution
The fourth proportional to 646,378.40, 970,010.46 and 225,654.26 is: 338,635.99
Step by Step Solution
- Step 1: Write the proportion equation
646,378.40 : 970,010.46 = 225,654.26 : x - Step 2: Convert to fraction form
646,378.40/970,010.46 = 225,654.26/x - Step 3: Cross multiply
646,378.40x = 970,010.46 × 225,654.26 - Step 4: Simplify right side
646,378.40x = 218,886,992,543.56 - Step 5: Solve for x
x = 218,886,992,543.56/646,378.40 - Step 6: Final answer
x = 338,635.99
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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.