Finding the Fourth Proportional to 1,972,643.12, 2,722,220.62 and 1,101,491.27
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Solution
The fourth proportional to 1,972,643.12, 2,722,220.62 and 1,101,491.27 is: 1,520,042.93
Step by Step Solution
- Step 1: Write the proportion equation
1,972,643.12 : 2,722,220.62 = 1,101,491.27 : x - Step 2: Convert to fraction form
1,972,643.12/2,722,220.62 = 1,101,491.27/x - Step 3: Cross multiply
1,972,643.12x = 2,722,220.62 × 1,101,491.27 - Step 4: Simplify right side
1,972,643.12x = 2,998,502,228,825.43 - Step 5: Solve for x
x = 2,998,502,228,825.43/1,972,643.12 - Step 6: Final answer
x = 1,520,042.93
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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.