Finding the Fourth Proportional to 2,587,816.80, 3,881,206.80 and 1,239,976.80
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Solution
The fourth proportional to 2,587,816.80, 3,881,206.80 and 1,239,976.80 is: 1,859,716.80
Step by Step Solution
- Step 1: Write the proportion equation
2,587,816.80 : 3,881,206.80 = 1,239,976.80 : x - Step 2: Convert to fraction form
2,587,816.80/3,881,206.80 = 1,239,976.80/x - Step 3: Cross multiply
2,587,816.80x = 3,881,206.80 × 1,239,976.80 - Step 4: Simplify right side
2,587,816.80x = 4,812,606,388,002.24 - Step 5: Solve for x
x = 4,812,606,388,002.24/2,587,816.80 - Step 6: Final answer
x = 1,859,716.80
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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.