Finding the Fourth Proportional to 909,986.08, 1,365,241.44 and 278,992.96
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Solution
The fourth proportional to 909,986.08, 1,365,241.44 and 278,992.96 is: 418,569.86
Step by Step Solution
- Step 1: Write the proportion equation
909,986.08 : 1,365,241.44 = 278,992.96 : x - Step 2: Convert to fraction form
909,986.08/1,365,241.44 = 278,992.96/x - Step 3: Cross multiply
909,986.08x = 1,365,241.44 × 278,992.96 - Step 4: Simplify right side
909,986.08x = 380,892,750,460.26 - Step 5: Solve for x
x = 380,892,750,460.26/909,986.08 - Step 6: Final answer
x = 418,569.86
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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.