Finding the Fourth Proportional to 1,972,643.24, 2,722,220.79 and 1,101,491.39
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Solution
The fourth proportional to 1,972,643.24, 2,722,220.79 and 1,101,491.39 is: 1,520,043.11
Step by Step Solution
- Step 1: Write the proportion equation
1,972,643.24 : 2,722,220.79 = 1,101,491.39 : x - Step 2: Convert to fraction form
1,972,643.24/2,722,220.79 = 1,101,491.39/x - Step 3: Cross multiply
1,972,643.24x = 2,722,220.79 × 1,101,491.39 - Step 4: Simplify right side
1,972,643.24x = 2,998,502,761,864.00 - Step 5: Solve for x
x = 2,998,502,761,864.00/1,972,643.24 - Step 6: Final answer
x = 1,520,043.11
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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.