Finding the Fourth Proportional to 2,587,814.20, 3,882,887.70 and 1,239,455.80
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Solution
The fourth proportional to 2,587,814.20, 3,882,887.70 and 1,239,455.80 is: 1,859,742.36
Step by Step Solution
- Step 1: Write the proportion equation
2,587,814.20 : 3,882,887.70 = 1,239,455.80 : x - Step 2: Convert to fraction form
2,587,814.20/3,882,887.70 = 1,239,455.80/x - Step 3: Cross multiply
2,587,814.20x = 3,882,887.70 × 1,239,455.80 - Step 4: Simplify right side
2,587,814.20x = 4,812,667,680,513.66 - Step 5: Solve for x
x = 4,812,667,680,513.66/2,587,814.20 - Step 6: Final answer
x = 1,859,742.36
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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.