Finding the Fourth Proportional to 1,328,809.38, 1,833,731.37 and 725,201.70
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Solution
The fourth proportional to 1,328,809.38, 1,833,731.37 and 725,201.70 is: 1,000,764.39
Step by Step Solution
- Step 1: Write the proportion equation
1,328,809.38 : 1,833,731.37 = 725,201.70 : x - Step 2: Convert to fraction form
1,328,809.38/1,833,731.37 = 725,201.70/x - Step 3: Cross multiply
1,328,809.38x = 1,833,731.37 × 725,201.70 - Step 4: Simplify right side
1,328,809.38x = 1,329,825,106,867.33 - Step 5: Solve for x
x = 1,329,825,106,867.33/1,328,809.38 - Step 6: Final answer
x = 1,000,764.39
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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.