Finding the Fourth Proportional to 2,661,738.58, 3,992,605.99 and 639,981.81
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Solution
The fourth proportional to 2,661,738.58, 3,992,605.99 and 639,981.81 is: 959,972.26
Step by Step Solution
- Step 1: Write the proportion equation
2,661,738.58 : 3,992,605.99 = 639,981.81 : x - Step 2: Convert to fraction form
2,661,738.58/3,992,605.99 = 639,981.81/x - Step 3: Cross multiply
2,661,738.58x = 3,992,605.99 × 639,981.81 - Step 4: Simplify right side
2,661,738.58x = 2,555,195,210,996.93 - Step 5: Solve for x
x = 2,555,195,210,996.93/2,661,738.58 - Step 6: Final answer
x = 959,972.26
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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.