Finding the Fourth Proportional to 1,972,768.38, 2,722,420.36 and 1,067,350.38
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Solution
The fourth proportional to 1,972,768.38, 2,722,420.36 and 1,067,350.38 is: 1,472,943.52
Step by Step Solution
- Step 1: Write the proportion equation
1,972,768.38 : 2,722,420.36 = 1,067,350.38 : x - Step 2: Convert to fraction form
1,972,768.38/2,722,420.36 = 1,067,350.38/x - Step 3: Cross multiply
1,972,768.38x = 2,722,420.36 × 1,067,350.38 - Step 4: Simplify right side
1,972,768.38x = 2,905,776,405,765.74 - Step 5: Solve for x
x = 2,905,776,405,765.74/1,972,768.38 - Step 6: Final answer
x = 1,472,943.52
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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.