Finding the Fourth Proportional to 512,539.44, 707,243.76 and 283,083.09
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Solution
The fourth proportional to 512,539.44, 707,243.76 and 283,083.09 is: 390,621.16
Step by Step Solution
- Step 1: Write the proportion equation
512,539.44 : 707,243.76 = 283,083.09 : x - Step 2: Convert to fraction form
512,539.44/707,243.76 = 283,083.09/x - Step 3: Cross multiply
512,539.44x = 707,243.76 × 283,083.09 - Step 4: Simplify right side
512,539.44x = 200,208,748,964.02 - Step 5: Solve for x
x = 200,208,748,964.02/512,539.44 - Step 6: Final answer
x = 390,621.16
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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.