Finding the Fourth Proportional to 1,306,638.97, 1,798,990.72 and 1,114,882.81
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Solution
The fourth proportional to 1,306,638.97, 1,798,990.72 and 1,114,882.81 is: 1,534,979.34
Step by Step Solution
- Step 1: Write the proportion equation
1,306,638.97 : 1,798,990.72 = 1,114,882.81 : x - Step 2: Convert to fraction form
1,306,638.97/1,798,990.72 = 1,114,882.81/x - Step 3: Cross multiply
1,306,638.97x = 1,798,990.72 × 1,114,882.81 - Step 4: Simplify right side
1,306,638.97x = 2,005,663,821,792.84 - Step 5: Solve for x
x = 2,005,663,821,792.84/1,306,638.97 - Step 6: Final answer
x = 1,534,979.34
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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.