Finding the Fourth Proportional to 715,544.41, 987,474.96 and 393,265.93
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Solution
The fourth proportional to 715,544.41, 987,474.96 and 393,265.93 is: 542,719.99
Step by Step Solution
- Step 1: Write the proportion equation
715,544.41 : 987,474.96 = 393,265.93 : x - Step 2: Convert to fraction form
715,544.41/987,474.96 = 393,265.93/x - Step 3: Cross multiply
715,544.41x = 987,474.96 × 393,265.93 - Step 4: Simplify right side
715,544.41x = 388,340,258,496.11 - Step 5: Solve for x
x = 388,340,258,496.11/715,544.41 - Step 6: Final answer
x = 542,719.99
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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.