Finding the Fourth Proportional to 715,548.03, 987,479.96 and 393,269.55
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Solution
The fourth proportional to 715,548.03, 987,479.96 and 393,269.55 is: 542,724.99
Step by Step Solution
- Step 1: Write the proportion equation
715,548.03 : 987,479.96 = 393,269.55 : x - Step 2: Convert to fraction form
715,548.03/987,479.96 = 393,269.55/x - Step 3: Cross multiply
715,548.03x = 987,479.96 × 393,269.55 - Step 4: Simplify right side
715,548.03x = 388,345,797,536.87 - Step 5: Solve for x
x = 388,345,797,536.87/715,548.03 - Step 6: Final answer
x = 542,724.99
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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.