Finding the Fourth Proportional to 714,271.21, 1,071,394.99 and 287,796.62
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Solution
The fourth proportional to 714,271.21, 1,071,394.99 and 287,796.62 is: 431,690.17
Step by Step Solution
- Step 1: Write the proportion equation
714,271.21 : 1,071,394.99 = 287,796.62 : x - Step 2: Convert to fraction form
714,271.21/1,071,394.99 = 287,796.62/x - Step 3: Cross multiply
714,271.21x = 1,071,394.99 × 287,796.62 - Step 4: Simplify right side
714,271.21x = 308,343,858,765.93 - Step 5: Solve for x
x = 308,343,858,765.93/714,271.21 - Step 6: Final answer
x = 431,690.17
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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.