Finding the Fourth Proportional to 1,977,536.40, 2,729,006.28 and 1,072,119.12
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Solution
The fourth proportional to 1,977,536.40, 2,729,006.28 and 1,072,119.12 is: 1,479,527.66
Step by Step Solution
- Step 1: Write the proportion equation
1,977,536.40 : 2,729,006.28 = 1,072,119.12 : x - Step 2: Convert to fraction form
1,977,536.40/2,729,006.28 = 1,072,119.12/x - Step 3: Cross multiply
1,977,536.40x = 2,729,006.28 × 1,072,119.12 - Step 4: Simplify right side
1,977,536.40x = 2,925,819,811,388.07 - Step 5: Solve for x
x = 2,925,819,811,388.07/1,977,536.40 - Step 6: Final answer
x = 1,479,527.66
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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.