Finding the Fourth Proportional to 1,981,638.99, 2,734,646.37 and 1,076,220.99
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Solution
The fourth proportional to 1,981,638.99, 2,734,646.37 and 1,076,220.99 is: 1,485,176.58
Step by Step Solution
- Step 1: Write the proportion equation
1,981,638.99 : 2,734,646.37 = 1,076,220.99 : x - Step 2: Convert to fraction form
1,981,638.99/2,734,646.37 = 1,076,220.99/x - Step 3: Cross multiply
1,981,638.99x = 2,734,646.37 × 1,076,220.99 - Step 4: Simplify right side
1,981,638.99x = 2,943,083,823,621.31 - Step 5: Solve for x
x = 2,943,083,823,621.31/1,981,638.99 - Step 6: Final answer
x = 1,485,176.58
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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.