Finding the Fourth Proportional to 1,288,783.97, 1,778,324.18 and 744,814.71
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Solution
The fourth proportional to 1,288,783.97, 1,778,324.18 and 744,814.71 is: 1,027,730.05
Step by Step Solution
- Step 1: Write the proportion equation
1,288,783.97 : 1,778,324.18 = 744,814.71 : x - Step 2: Convert to fraction form
1,288,783.97/1,778,324.18 = 744,814.71/x - Step 3: Cross multiply
1,288,783.97x = 1,778,324.18 × 744,814.71 - Step 4: Simplify right side
1,288,783.97x = 1,324,522,004,688.61 - Step 5: Solve for x
x = 1,324,522,004,688.61/1,288,783.97 - Step 6: Final answer
x = 1,027,730.05
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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.