Finding the Fourth Proportional to 1,988,226.19, 2,743,788.69 and 1,105,258.42
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Solution
The fourth proportional to 1,988,226.19, 2,743,788.69 and 1,105,258.42 is: 1,525,276.94
Step by Step Solution
- Step 1: Write the proportion equation
1,988,226.19 : 2,743,788.69 = 1,105,258.42 : x - Step 2: Convert to fraction form
1,988,226.19/2,743,788.69 = 1,105,258.42/x - Step 3: Cross multiply
1,988,226.19x = 2,743,788.69 × 1,105,258.42 - Step 4: Simplify right side
1,988,226.19x = 3,032,595,552,323.27 - Step 5: Solve for x
x = 3,032,595,552,323.27/1,988,226.19 - Step 6: Final answer
x = 1,525,276.94
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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.