Finding the Fourth Proportional to 815,987.16, 1,125,739.62 and 471,759.84
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Solution
The fourth proportional to 815,987.16, 1,125,739.62 and 471,759.84 is: 650,842.03
Step by Step Solution
- Step 1: Write the proportion equation
815,987.16 : 1,125,739.62 = 471,759.84 : x - Step 2: Convert to fraction form
815,987.16/1,125,739.62 = 471,759.84/x - Step 3: Cross multiply
815,987.16x = 1,125,739.62 × 471,759.84 - Step 4: Simplify right side
815,987.16x = 531,078,743,012.86 - Step 5: Solve for x
x = 531,078,743,012.86/815,987.16 - Step 6: Final answer
x = 650,842.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.