Finding the Fourth Proportional to 1,819,691.71, 2,511,220.04 and 1,122,126.19
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Solution
The fourth proportional to 1,819,691.71, 2,511,220.04 and 1,122,126.19 is: 1,548,562.19
Step by Step Solution
- Step 1: Write the proportion equation
1,819,691.71 : 2,511,220.04 = 1,122,126.19 : x - Step 2: Convert to fraction form
1,819,691.71/2,511,220.04 = 1,122,126.19/x - Step 3: Cross multiply
1,819,691.71x = 2,511,220.04 × 1,122,126.19 - Step 4: Simplify right side
1,819,691.71x = 2,817,905,775,736.85 - Step 5: Solve for x
x = 2,817,905,775,736.85/1,819,691.71 - Step 6: Final answer
x = 1,548,562.19
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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.