Finding the Fourth Proportional to 765,740.21, 1,149,319.26 and 386,927.51
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Solution
The fourth proportional to 765,740.21, 1,149,319.26 and 386,927.51 is: 580,749.49
Step by Step Solution
- Step 1: Write the proportion equation
765,740.21 : 1,149,319.26 = 386,927.51 : x - Step 2: Convert to fraction form
765,740.21/1,149,319.26 = 386,927.51/x - Step 3: Cross multiply
765,740.21x = 1,149,319.26 × 386,927.51 - Step 4: Simplify right side
765,740.21x = 444,703,233,720.25 - Step 5: Solve for x
x = 444,703,233,720.25/765,740.21 - Step 6: Final answer
x = 580,749.49
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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.