Finding the Fourth Proportional to 1,811,010.90, 2,716,516.35 and 1,212,647.70
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Solution
The fourth proportional to 1,811,010.90, 2,716,516.35 and 1,212,647.70 is: 1,818,971.55
Step by Step Solution
- Step 1: Write the proportion equation
1,811,010.90 : 2,716,516.35 = 1,212,647.70 : x - Step 2: Convert to fraction form
1,811,010.90/2,716,516.35 = 1,212,647.70/x - Step 3: Cross multiply
1,811,010.90x = 2,716,516.35 × 1,212,647.70 - Step 4: Simplify right side
1,811,010.90x = 3,294,177,303,839.90 - Step 5: Solve for x
x = 3,294,177,303,839.90/1,811,010.90 - Step 6: Final answer
x = 1,818,971.55
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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.