Finding the Fourth Proportional to 987,678.99, 1,481,507.68 and 239,724.99
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Solution
The fourth proportional to 987,678.99, 1,481,507.68 and 239,724.99 is: 359,584.86
Step by Step Solution
- Step 1: Write the proportion equation
987,678.99 : 1,481,507.68 = 239,724.99 : x - Step 2: Convert to fraction form
987,678.99/1,481,507.68 = 239,724.99/x - Step 3: Cross multiply
987,678.99x = 1,481,507.68 × 239,724.99 - Step 4: Simplify right side
987,678.99x = 355,154,413,772.92 - Step 5: Solve for x
x = 355,154,413,772.92/987,678.99 - Step 6: Final answer
x = 359,584.86
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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.