Finding the Fourth Proportional to 2,567,708.20, 3,849,812.70 and 1,220,516.20
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Solution
The fourth proportional to 2,567,708.20, 3,849,812.70 and 1,220,516.20 is: 1,829,942.66
Step by Step Solution
- Step 1: Write the proportion equation
2,567,708.20 : 3,849,812.70 = 1,220,516.20 : x - Step 2: Convert to fraction form
2,567,708.20/3,849,812.70 = 1,220,516.20/x - Step 3: Cross multiply
2,567,708.20x = 3,849,812.70 × 1,220,516.20 - Step 4: Simplify right side
2,567,708.20x = 4,698,758,767,315.74 - Step 5: Solve for x
x = 4,698,758,767,315.74/2,567,708.20 - Step 6: Final answer
x = 1,829,942.66
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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.