Finding the Fourth Proportional to 1,972,407.99, 2,721,896.49 and 1,101,256.02
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Solution
The fourth proportional to 1,972,407.99, 2,721,896.49 and 1,101,256.02 is: 1,519,718.49
Step by Step Solution
- Step 1: Write the proportion equation
1,972,407.99 : 2,721,896.49 = 1,101,256.02 : x - Step 2: Convert to fraction form
1,972,407.99/2,721,896.49 = 1,101,256.02/x - Step 3: Cross multiply
1,972,407.99x = 2,721,896.49 × 1,101,256.02 - Step 4: Simplify right side
1,972,407.99x = 2,997,504,895,429.37 - Step 5: Solve for x
x = 2,997,504,895,429.37/1,972,407.99 - Step 6: Final answer
x = 1,519,718.49
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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.