Finding the Fourth Proportional to 709,241.44, 978,751.92 and 386,951.68
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Solution
The fourth proportional to 709,241.44, 978,751.92 and 386,951.68 is: 533,992.63
Step by Step Solution
- Step 1: Write the proportion equation
709,241.44 : 978,751.92 = 386,951.68 : x - Step 2: Convert to fraction form
709,241.44/978,751.92 = 386,951.68/x - Step 3: Cross multiply
709,241.44x = 978,751.92 × 386,951.68 - Step 4: Simplify right side
709,241.44x = 378,729,699,747.23 - Step 5: Solve for x
x = 378,729,699,747.23/709,241.44 - Step 6: Final answer
x = 533,992.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.