Finding the Fourth Proportional to 987,384.75, 1,481,081.99 and 239,430.75
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Solution
The fourth proportional to 987,384.75, 1,481,081.99 and 239,430.75 is: 359,147.30
Step by Step Solution
- Step 1: Write the proportion equation
987,384.75 : 1,481,081.99 = 239,430.75 : x - Step 2: Convert to fraction form
987,384.75/1,481,081.99 = 239,430.75/x - Step 3: Cross multiply
987,384.75x = 1,481,081.99 × 239,430.75 - Step 4: Simplify right side
987,384.75x = 354,616,570,480.04 - Step 5: Solve for x
x = 354,616,570,480.04/987,384.75 - Step 6: Final answer
x = 359,147.30
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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.