Finding the Fourth Proportional to 1,288,668.51, 1,778,258.43 and 744,839.49
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Solution
The fourth proportional to 1,288,668.51, 1,778,258.43 and 744,839.49 is: 1,027,818.32
Step by Step Solution
- Step 1: Write the proportion equation
1,288,668.51 : 1,778,258.43 = 744,839.49 : x - Step 2: Convert to fraction form
1,288,668.51/1,778,258.43 = 744,839.49/x - Step 3: Cross multiply
1,288,668.51x = 1,778,258.43 × 744,839.49 - Step 4: Simplify right side
1,288,668.51x = 1,324,517,102,089.40 - Step 5: Solve for x
x = 1,324,517,102,089.40/1,288,668.51 - Step 6: Final answer
x = 1,027,818.32
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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.