Finding the Fourth Proportional to 2,128,197.03, 2,936,974.20 and 1,161,389.63
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Solution
The fourth proportional to 2,128,197.03, 2,936,974.20 and 1,161,389.63 is: 1,602,751.69
Step by Step Solution
- Step 1: Write the proportion equation
2,128,197.03 : 2,936,974.20 = 1,161,389.63 : x - Step 2: Convert to fraction form
2,128,197.03/2,936,974.20 = 1,161,389.63/x - Step 3: Cross multiply
2,128,197.03x = 2,936,974.20 × 1,161,389.63 - Step 4: Simplify right side
2,128,197.03x = 3,410,971,379,457.55 - Step 5: Solve for x
x = 3,410,971,379,457.55/2,128,197.03 - Step 6: Final answer
x = 1,602,751.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.