Finding the Fourth Proportional to 1,982,260.17, 2,735,431.43 and 1,122,803.19
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Solution
The fourth proportional to 1,982,260.17, 2,735,431.43 and 1,122,803.19 is: 1,549,418.78
Step by Step Solution
- Step 1: Write the proportion equation
1,982,260.17 : 2,735,431.43 = 1,122,803.19 : x - Step 2: Convert to fraction form
1,982,260.17/2,735,431.43 = 1,122,803.19/x - Step 3: Cross multiply
1,982,260.17x = 2,735,431.43 × 1,122,803.19 - Step 4: Simplify right side
1,982,260.17x = 3,071,351,130,016.25 - Step 5: Solve for x
x = 3,071,351,130,016.25/1,982,260.17 - Step 6: Final answer
x = 1,549,418.78
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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.